How many songs can you think of that are about butts? I bet they are in this medley. And I would bet there are some you forgot about, since they are from different eras and genres of music.
Home Free is an a cappella group that is technically listed as "country," and they start off with a country song ("Honky Tonk Badonkadonk" by Trace Adkins), but then they seamlessly slide into pop, rock, and rap butt songs you know and love.
While they are very good at what they do, the song choices and the mix is hilarious. -via Everlasting Blort