Britney Spears's OMG Moments

Her striptease! Her shocking videos! Her split from The X Factor and Jason Trawick! Look back at the star's biggest jaw-droppers

PERFORMANCE ANXIETY

As a heated custody battle rages on, Spears releases her fifth album, Blackout, and performs its lead single, "Gimme More," at the 2007 MTV VMA Awards on September 9. But her lackluster showing proves a disappointment, with the New York Times writing, "She was awful." The singer's performance inspires an episode of South Park and memorably made Chris Crocker, with his "Leave Britney alone!" rant, an Internet superstar.