Bill Murray isn't the only star crashing parties now. Modern Family men Jesse Tyler Ferguson and Eric Stonestreet went back to college and had a little fun at Stonestreet's old fraternity.
Ferguson revealed on Conan that his co-star talked him into dropping in on his Kansas State University frat house at 2:30 in the morning. Stonestreet got the great idea of going to see what his old room looked like.
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That's when it got awkward. "And there was a man in there with his lady friend, and they were under the sheets doing naughty things, and we come into the room, and they're like, 'Heyyyyyyyyy!'" Ferguson recalled.
Despite walking in on this private moment, the guy and girl still wanted a photo with the on-screen Modern Family couple.
Not all fans are this fun. See what the Modern Family cast had to say about their craziest fan encounters.