Or perhaps you enjoyed when the entire wedding party broke out into an ~improvised~ sing-a-long in My Best Friend's Wedding.
Or heck, maybe you really dig the dream-like weirdness that is the Cuban Pete sequence in The Mask.
Share your absolute favorite musical moment from an otherwise NON-MUSICAL film in the comments below and why you think it ~rocks~ for a chance to be featured in an upcoming BuzzFeed post or video!