Paul Mullin Rob McElhenney Kaitlin OlsonGetty/GOAL

Wrexham star Paul Mullin reveals how he embarrassed himself in front of Rob McElhenney's wife Kaitlin Olson during chat about 'It's Always Sunny in Philadelphia'

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  • Star frontman mingling with A-list stars
  • Nerves got the better of him
  • Comment laughed off by all concerned