Meanwhile …

Rihanna’s “SOS” gives way to “Ridin'” by Chamillionaire featuring Krayzie Bone as the number one tune in the land.

According to Billboard’s Chart Beat, “Ridin'” is Motown’s 38th number one, ranking it sixth among the labels:

Columbia (95)
RCA (60)
Capitol (50)
Atlantic (42)
Epic (40)
Motown (38)

Red Hot Chili Peppers’ Stadium Arcadium holds on as the number one album.