LMFAO are known for their song Sexy and I Know It , which reached number one spot in Australia , Canada , New Zealand , and the United States .
LMFAO were best remembered for their songs `` Party Rock Anthem '' , which reached # 1 in the United Kingdom , Australia , Belgium , Brazil , Canada , Denmark , France , Germany , Ireland , New Zealand , Switzerland , and the United States and `` Sexy and I Know It '' which reached number one in Australia , Canada , New Zealand , and the United States. ``
LMFAO