Train's new music video for party anthem 'Drink Up' has some big celeb cameos

How does Train make the best music video ever? Crash a wedding with some of their closest celebrity pals, of course.

Train dropped a brand new music video on May 12 for their second single "Drink Up" off their album "a girl a bottle a boat," and the party anthem is definitely getting its due in the music video department.

The epic video was filmed at NFL standout Marshawn Lynch's wedding and Train lead singer Pat Monahan decided to crash the nuptials with his celeb buddies, George Lopez, Ken Jeong and Jim Breuer, because their invites apparently got lost in the mail.

Naturally, the big surprise turned from fun to incredible in a matter of minutes with the stars jumping in to dance with bride and groom's families and Jeong diving into catch the bouquet.

Check out some of the exclusive behind-the-scenes images from the music video and check out the debut of "Drink Up's" official music video below.

Be sure to also check out Train this summer on their "Play That Song summer tour (with special guests O.A.R. and Natasha Bedingfield), which is coming to 45+ cities.