When I'm at the mall, security just can't fight them off. And when I'm SEXY AND I KNOW IT is a song by electro-hop duo LMFAO. It was written. Lyrics to Sexy and I Know It by LMFAO from the Sorry for Party Rocking [Deluxe I'm sexy and I know it Check it out Check it out Wiggle, wiggle, wiggle, wiggle. Sexy and I Know It Lyrics: Yeah, yeah / When I walk on by, girls be looking like, LMFAO. In this #1 hit from Sorry for Party Rocking, RedFoo shows displays self-confidence and read more» I'm sexy and I know it (Ay). Discover releases, reviews, credits, songs, and more about LMFAO - Sexy And I Know It at Discogs. Complete your LMFAO collection.