Rihanna Earns 13th No. 1 Hit With Eminem's 'The Monster'

Eminem and Rihanna are making history again with their latest collabo, 'The Monster.' The single is No. 1 on the Billboard Hot 100 chart this week. RiRi now ties with Michael Jackson for having the most No. 1s (13), while Em ties for the most No. 1s (five) among the rappers.