Short EUF scene in the parody sports movie, The Comebacks. In what I think was supposed to be a parody of the Janet Jackson Super Bowl incident, an "All-American Family" are doing a musical number (and by that, I mean just the mom and dad since the daughter and son are just sitting on the couch for the whole scene). Then the dad rips off the mom's clothes for no reason, leaving her in lingerie. At first, the mom (who's played by Stacy Keibler by the way) is shocked and covers up, but then starts doing a short dance. Here's the scene, starting right before she gets stripped
http://youtu.be/caX5cWV1QEA