LMFAO (an initialism for Laughing My Freaking Ass Off) was an American electronic dance music duo consisting of Redfoo and Sky Blu. The duo are best known for their 2011 singles "Party Rock Anthem" (featuring Lauren Bennett and GoonRock) and "Sexy and I Know It", both of which peaked atop the Billboard Hot 100. They released two studio albums: Party Rock (2009) and Sorry for Party Rocking (2011) through will.i.am Music Group, an imprint of Interscope Records until their disbandment... [more on Wikipedia]