Katy Perry hit song featuring Juicy J "Dark Horse" is sitting on top of the Billboard Hot 100. "Dark Horse" is Juicy J's first Hot 100 No. 1. His highest single was No. 11 in October as a guest, with Miley Cyrus and Wiz Khalifa, on Mike WiLL Made-It's "23." Juicy and Katy performed the hit song on last Sunday (Jan. 26) at the Grammys. Juicy J's win streak continues.

[via Billboard]

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