Undoubtedly benefitting from four weeks of airplay before its release - clearly it wasn't an 'on air, on sale' choice - On The Floor, which features a rap from Pitbull, is Lopez's third number one, following Love Don't Cost A Thing (2001) and Get Right (2005).
First week sales of 133,179 copies - the highest by any single for 11 weeks - represent a new high for Lopez, whose best week hitherto came when her first single If You Had ...
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