Please Welcome to the Stage, "Wine Drunk" John Legend

Guests at Universal Studios got to enjoy a rather unexpected concert on Friday, thanks to John Legend. During a trip to the amusement park, the 40-year-old singer apparently got a little tipsy and took the stage to croon an impromptu (and off-key) version of his 2013 single "All of Me." Oh, and did we mention he was dressed in a onesie with his face printed on it? "We went to @unistudios last night to do Horror Nights before they shut it down," he captioned a clip of the mini show. "Costume theme was onesies. . . . Someone made Chrissy a onesie with my face on it and of course I had to wear it. Then I found a reluctant DJ with a mic and serenaded myself. It was a night."

Chrissy posted about the hilarious moment on Twitter, writing, "John got wine drunk and sang a song at universal studios last night." She then provided a little background on how the onesie-clad singer ended up on stage in the first place: "The whole joke was supposed to be that literally no one was watching or at the stage but then he got on stage and was like ITS ME JOHN LEGEND." He might not sound like his usual self, but you have to love the passion.