LMFAO's club banger, 'Party Rock Anthem', has maintained its reign at number 1 as the midweek chart update is revealed. 

The track is on course for a third week at the top spot despite tough competition from JLo with 'On The Floor', which is just behind it at 2, and Chris Brown's 'Beautiful People', which currently stands at 3 and is climbing the charts. 

Glee's original song, 'Loser Like Me', has also made a surprise entry today (April 27) at number 26, but the track's official position won't be confirmed until this coming weekend. 

Watch the electro-dance act talk about their chart success here: