
Pop anniversaries

Event created by IAmJustAKnee
Britney's second remix album that includes remixes of various tracks from Blackout, Circus, and Femme Fatale (also including "3" with "My Prerogative" exclusively in Japan).
Announcement from 2011: https://britneyspears.tumblr.com/post/10009164727/b-in-the-mix-the-remixes-volume-2