You can help confirm this entry by contributing facts, media, and other evidence of notability and mutation. In the music video it shows a group of average looking guys trying to get girls' attention by showing off their unathletic bodies. At some point they all take their trousers pants for U. S off and start having a "wiggle off" with other male "contestants". During those scenes, the phrase " I'm Sexy and I know it " is repeated several times.
It was released as the third single from the album on 16 September Robertson and Kenneth Oliver, and it was produced by Party Rock. It went to number one on the Billboard Hot on January 7,  and remained there for two weeks. The song was featured in the season 5 , episode 12 of Gossip Girl.