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Rihanna now has the most number ones on Billboard's Pop Songs Chart than any other artist in its history. 

Her latest collaboration with Eminem, "The Monster," hit the top spot this week, bringing her career-long total up to eleven.  The single pushes Rihanna past her pop star pal Katy Perry. 

Until now, the two were tied at the top with ten each.  "The Monster" is also the fourth number one for Eminem.  The rapper previously reigned on the pop chart with his hits "Without Me," "Lose Yourself" and another Rihanna-assisted song "Love the Way You Lie."  

Congrats RiRi!

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