Rihanna, Ed Sheeran & Taylor Swift Get Boosts on Hot 100 as Mark Ronson and Bru** Mar
 

Don't believe him, just watch. For the seventh week in a row, Bru** Mars and Mark Ronson's throwback hit "Uptown Funk" dominates the Hot 100. Despite major publicity and sales boosts from the 2015 Grammys, new singles from Rihanna and Ed Sheeran were able to gain momentum but unable to grab that **. 1 spot.

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