Reality star Kelly Osbourne fell on her butt between her partner Louis van Amstel’s legs during their final performance of a freestyle disco routine to the sound of Gloria Gaynor’s hit ‘I Will Survive’ on Dancing With The Stars on Monday (November 23) – watch video below.

Against all odds, Kelly is in the season finale of DWTS, competing with Mya and Donnie Osmond for the top spot. Kelly was always the underdog but she was also the contestant who most evolved in the competition so I think it would be fair for her to win. Of course, Kelly has a small change against pro Mya and public favorite Donnie.

Who do you think will win Dancing With The Stars Season 9??

Other celebs to take embarrassing falls this week include: Jennifer Lopez (watch video here) and Adam Lambert (watch video here), both at the 2009 American Music Awards on Sunday (November 22).

Kelly Osbourne Fall DWTS Disco Video Below