The whistle goes to end the game and You'll Never Walk Alone booms out as the players shake hands an embrace. It will Chelsea that Barcelona face in the semi finals.
Bayern have tried to slow down Barcelona's midfield, but their players have been sluggish and are now walking about.
Both teams will now be considering their next league encounters and not go flying into any tackles or taking any risks. Bayern face Arminia Bielefeld away while Barça travel to Getafe.
Huuuyyy!!! - Xavi lifts a free-kick over the Bayern wall and sees it fly just high and wide of Butt's goal frame.
Yellow Card Christian Lell
Huuuyyy!!! - Van Bommel takes aim from 25 yards out and it is not a great shot as he sees his shot lack accuracy and power as it drifts wide.
Tim Borowski may have only been on the pitch for a few minutes, but he already has a yellow card after fouling Alves.
Yellow Card Tim Borowski
Messi looked to move into the area, but Lucio produces another well-timed tackle to stop his advance and Bayern can move up field.
Huuuyyy!!! - Lahm finds space and lets fly with his right foot, but it is straight at Valdes. Moments later Bayern are caught offside again.
The impressive Iniesta off to be replaced by Aliaksandr Hleb, while Bayern make a double change to try and find a path to a morale-boosting win.
Substitution Andrés Iniesta Luján Aliaksandr Hleb
Substitution Zé Roberto Tim Borowski
Substitution José Sosa Hamit Altıntop
Ribery goes past Puyol yet again down the left of the area, but his low cross is well cut out by Valdes as he goes down in front of Toni.
Bayern are now set to make changes, but with the tie out of their hands it is just a case of going through the motions when perhaps Klinsmann could have done more earlier.
GOOOAAALLL!!! - A stunning move opens up Bayern and put the tie beyond doubt. A series of passes involving Iniesta down the left sees Xavi roll it back to Seydou Keita and sends a soaring shot past Butt.
Goal Seydou Keita
Huuuyyy!!! - Messi was picked out with a pass to the edge of the area,but he connected and lifted the ball at a 45-degree angle over the bar.
Huuuyyy!!! - Messi broke down the right and as he rolled the ball across the area for Eto'o, Lucio raced back and produced a superb tackle to deny the Camoeroonian international a chance to shoot.
The home fans are not happy as the referee gives Barça a free-kick following Toni's kick in Alves' stomach. The Italian forward is not having a good night at all.
Toni is calling for a penalty as he flings himself over when trying to reach a cross from Ze Roberto. Pique may have made minimal contact, but that was a dive and the striker is lucky not to be booked.
Barcelona are moving the ball about and Bayern are sitting back and watching in the midfield. Klinsmann could do with making some changes to give his team some impetus.
Ribery is crowded out as he looks to move towards the Bayern box and as Barça move forward Iniesta is tripped. Van Bommel is not impressed and tries to help him to his feet.
A Bayern free-kick is whipped into the area and the referee spots a foul in the crowd and prevents the hosts from keeping the ball in their opponents' half.
Ribery rolls the ball into Toni's feet this time, but once more the big striker allows it bounce off him and his technical qualities appear to be deserting him in this encounter.
Toni is not causing Barcelona's defenders many problems at all as he cannot, again, hold up the ball and the chance to keep the pressure on goes.
Ribery is tackled in midfield and after losing the ball he looks to the referee for a foul and when it is not given he just stops and watches Barça play it around him.
Iniesta strides into the area, but he goes down as soon as he is across the white line having felt contact with Van Bommel and the referee is not impressed.
Huuuyyy!!! - Alves whips a cross in from the right and Messi meets it at the far post but his poor touch sees it fly back and hit Lucio in the face and go behind.
Ze Roberto moves forward and plays the ball into Toni, who is inexplicably unable to judge the line and the chance goes as the big Italian is offside.
The ball has lifted the home fans, but on the picth Barcelona have possession and are looking for immediate response.
It is the first goal that Valdes has conceded in almost nine hours and he will be hoping that the hosts are unable to score again in this encounter.
GOOOAAALLL!!! - Bayern have made the breakthrough and have the lead on the night. Ze Roberto a pass down the left of the area to Ribery and Frenchman stayed onside before dummying Valdes and hammering the ball into the net.
Goal Franck Ribéry
Bayern start the second period and neither team have made any changes in personnel, but it remains to be seen if Klinsmann has tweaked his tactics.
The half-time whistle blows and Bayern have played like they should have done in the first game. In the second half more presence up front will be required by the hosts.
Abidal puts in a well-timed tackle in on Lell in the area to clear for a corner after Sosa played an incisive ball forward. Klinsmann needs his side to be more ambitious in the second period.
Huuuyyy!!! - Van Bommel produces a reverse pass to put Toni into the area, but the Italian took a first-time swipe with his left foot and steered high and wide.
Eto'o is helped to his feet after he was caught by Demelchelis with a tackle that earned the Argentinian a yellow card.
Yellow Card Martín Demichelis
Van Bommel caught Messi in the first leg with a thunderous tackle and he has muscled him off the ball again and after the Argentinian stayed down, the Dutchman protested his innocence.
Huuuyyy!!! - Ribery looked to edge past Alves and after finding the smallest gap he went for goal and fired wide of the near post, when a cross would have maybe caused more problems for Barça.
Alves sees his free-kick from 30 yards cannon back off the wall and as Bayern look to break, Toni is too slow reach the first forward pass aimed at him.
Yellow Card Lúcio
Bayern are called back for being offside yet again and Barcelona's defence are keeping the line well and frustrating the German players and fans,
Huuuyyy!!! - From Barcelona's second corner in quick succession, Alves moves the ball from his right to his left foot and sees his shot fly just over.
Huuuyyy!!! - Eto'o runs on to a pass from Messi and the Cameroonian is denied by a superb sliding block from Lucio.
Van Bommel puts in a stiff, but fair, tackle on Abidal and receives a cheer from the home support.
Barcelona are beginning to apply the pressure now and Bayern have to sit back and defend, like they should have done in Camp Nou.
Messi accelerated away from Lell, but then wins a free-kick on Barça's left flank after Lucio jumped in to try and win the ball.
Another long punt forward sees Butt put his arms to take the ball down easily, but instead he lets it flip over him. The Keeper does recover, but again he looks unnerved.
Butt receives a back pass and his first touch is not great so he has to pull the ball away from Eto'o and does so, but that cannot be doing Klinsmann's health much good.
Puyol has been rattled early on and it has shown up again as he leaps into a tackle on Ribery and earns a booking for an unnecessry foul on the left flank.
Yellow Card Carles Puyol
Messi and Xavi try almost too hard to create an opening, before Alves fouls again and will have to be careful as he already been booked.
Superb skill from Alves saw him skip past Demechelis and Sosa before seeing a shot deflect wide for a corner.
Barcelona are looking more adventurous as Eto'o heads wide before Iniesta opens the game up with a pass to Eric Abidal, but his cross is high.
Guardiola is up in the stand alongside Barça's goalkeeping coach, Juan Carlos Unzue, as he is not allowed near the team during the game as he is suspended following his sendiing off in the first game.
Huuuyyy!!! - Eto'o takes a touch and aims goalwards, but Hans Jorg Butt is relieved that the ball flies well over the bar. Alves is booked for the earlier foul on Ribery.
Yellow Card Daniel Alves
Ribery is caught by Alves, but the referee waves play on as Ze Roberto pushes forward and looks to exchange passes with Luca Toni, but the former Real Madrid's midfielder cannot control the return ball.
There are a few whistles as Toure Yaya goes over gripping his foot and appears to be in pain. The club doctors rush on and help the midfielder limp off the pitch.
Huuuyyy!!! - Ribery and Toni combine before the Frenchman turns Puyol to create enough space for a left-foot shot that flies over Valdes' crossbar.
Victor Valdes thumps the ball down the pitch and it evades everyone and is seen out for a goal-kick at the other end.
Barça flick the ball around on the left of midfield, but do not use their possession as the first forward pass finds Samuel Eto'o offside.
Dani Alves is confused after the ball was kicked out by a Bayern player, but not as confused as the linesman who gave it as a home throw and was told by the Brazilian that he had made the wrong decision.
Ribery goes past Puyol as the Catalans' captain looks unsettled early on and after his cross was knocked out for a corner, Toni prods the ball into the net after being called back for being offside.
Huuuyyy!!! - A glorious, glorious chance as Sosas lifts the ball into the centre and Luca Toni completely mistimes his header and does not connect after losing Carles Puyol. A surprising miss.
An even start sees both teams enjoying time on the ball, but it is Barcelona that are just beginning to roll it around with the more purposeful look.
Franck Ribery looks determined as he movesd forward and the French star will want to do more than he did in Camp Nou even if he will not be joining the Blaugrana, despite Van Bommel's misquoted efforts
Lucio charged forward and in his enthusiasm he is ajudged to have fouled Seydou Keita and the Bayern impetus draws to a brief close.
Barcelona kick off and Bayern put a tackle in and raise a cheer from the stands. Already the Blaugrana are pushing up and we are only a few seconds in.
Former team-mates Carles Puyol and Mark vna Bommel shake hands and exchange pennants as the teams toss the coin.
The players come out on to the pitch with the home side in their home shirts of red and white hoops, while Barça are resplendent in their yellow away shirt, with the Blaugrana stripes as a nod to the 1970's design of Johan Cruyff's playing days.
Jurgen Klinsmann has told his players to recover the club's image after club legend Franz Beckenbaure described the performance last week in Camp Nou as the worst in Bayern's history.
Whether it is to see if a miracle can happen, or to taste the Champions League for the last time this season or even to see Barcelona first hand, the Allianz Arena is packed for this encounter.
Pep Guardiola has kept his promise to show the Bavarian giants complete respect by naming a first choice team with only Thierry Henry missing from the regular forward line. The big news is that Eric Abidal is back after recovering from injury.
Philipp Lahm, Lucio and Jose Sosa are back for Bayern after missing the first leg and they could be crucial in preventing Barça from reconrding another victory.
Bayern Munich will have to make Champions League history if they are to cause a huge surprise and turn over Barcelona's four-goal first-leg lead to progress to the semi-final. The hosts have already cast doubt on that and are playing for pride. Follow the action on Goal.com...
Times In BST
Live Final scheduled Suspended Cancelled Postponed