Electro-dance act LMFAO have knocked JLo from the top spot with their track, 'Party Rock Anthem', and have claimed the UK singles chart number 1 for themselves. 

The song has enjoyed extensive airplay recently thanks to its club friendly sounds, danceable beat and accessible appeal and it's finally managed to move Lopez's 'On The Floor' down a place to number 2. 

Katy Perry ft. Kanye West with 'E.T.' has climbed 2 places to 3, Snoop Dogg has shot up 5 places to number 4 with his newly retitled single, 'Sweat', and Black Eyed Peas complete the top 5 with their latest offering, 'Just Can't Get Enough'. 

Lady Gaga's 'Judas', which was released earlier this week after it leaked online, is a new entry at number 14 despite currently being at number 3 on the UK iTunes singles chart. Watch LMFAO's video for 'Party Rock Anthem' here: