The Notorious B.I.G.'s "Greatest Hits" debuts at No. 1 on The Billboard 200, giving the late rapper his third chart-topper ... Arcade Fire starts in the runner-up slot with "Neon Bible" and at No. 1 on Top Independent Albums ... Three more debuts fall in the top 10 this week: Gary Allan's "Greatest Hits," Relient K's "Five Score and Seven Years Ago" and Korn's "MTV Unplugged" ... In Progress Reports we've got updates on Justin Timberlake, Pink, Lily Allen, T-Pain, Beyonce and Shakira.