Could the Jonas Brothersbeany more adorable? On Sunday, the boy band marked the 25th anniversary ofFriendsby Instagramming a cute tribute video set to the sitcom's iconic theme song.ETnotes that the clip is composed of outtakes from the band's official music video for "Sucker," showing them and their wives cavorting in and around a giant castle. "The One Where The Band Got Back Together," they captioned the video. "Happy 25th anniversary @FRIENDS!"