Baauer's viral hit Harlem Shake has scored a second week at the top of the U.S. pop charts.

The catchy tune made history last week (ends22Feb13) when it topped the first Billboard Hot 100 to include YouTube.com streaming data.

Former chart-toppers MACklemore & Ryan Lewis stay put at two with Thrift Shop, while Bruno Mars returns to the top three at three with his new hit When I Was Your Man.

Taylor Swift's I Knew You Were Trouble and Scream & Shout by will.i.am and Britney Spears round out the new top five.