 "Hi everybody and welcome to the Shrek in the Swamp Karaoke Dance Party!" Says Shrek upon the beginning of the party. If you own the Shrek 2-Disk Special Edition DVD or Special Edition VHS, you can view this extended ending to the movie  Shrek . What happens is after Shrek and Fiona s wedding, Shrek turns up the karaoke machine and your favorite characters like Donkey and the Gingerbread Man sing hits like  Baby Got Back  and  Like a Virgin , the party continues as many more start singing songs as well. The party then ends with the entire cast singing the lively  Dance to the Music .