Kaitlin Olson, from left, Danny DeVito, Rob McElhenney, Glenn

Download this stock image: Kaitlin Olson, from left, Danny DeVito, Rob McElhenney, Glenn Howerton and Charlie Day arrive at The Paley Center for Media's An Evening with It's Always Sunny in Philadelphia at The Paley Center for Media on Friday, April 1, 2016, in Beverly Hills, Calif. (Photo by Rich Fury/Invision/AP) - 2MYYMH4 from Alamy's library of millions of high resolution stock photos, illustrations and vectors.

Kaitlin Olson, Danny DeVito and Rob McElhenney Danny DeVito is honoured with a star on the Hollywood Walk of Fame, held on Hollywood Boulevard Los Angeles, California - 18.08.11 Stock Photo - Alamy

Kaitlin Olson, from left, Danny DeVito, Rob McElhenney, Glenn Howerton and Charlie Day arrive at The Paley Center for Media's An Evening with It's Always Sunny in Philadelphia at The Paley Center

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Kaitlin Olson, from left, Danny DeVito, Charlie Day, Mary Elizabeth Ellis, Rob McElhenney, Jill Latiano and Glenn Howerton attend the 40th Annual Gala Dinner to benefit the Saban Community Clinic at the

Kaitlin Olson, Danny DeVito, Rob McElhenney, Glenn Howerton & Charlie Day THE PALEY CENTER FOR

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