Miami rapper Rick Ross debuted at the top spot this week with his latest album, 'Port of Miami,' selling 187,000 copies, according to Neilsen SoundScan. That was enough to knock last week's No. 1 -- the 22nd edition of the popular music series 'Now That's What I Call Music!' featuring smash hits by the likes of Rihanna, All American Rejects and 'Now' staple Kelly Clarkson -- down to No. 3 with 104,000 copies sold.

Pennsylvania rockers Breaking Benjamin debuted at No. 2 with their latest, 'Phobia,' selling 124,000 copies, while R&B chanteuse Cassie landed at No. 4 -- another chart debut -- with 100,000 copies sold

Rounding out the Top Five were metal vets Slayer, whose politically-charged new album, 'Christ Illusion,' sold 62,000 copies.