Britney Spears Brings the Heat — and the Nostalgia — During Her Supersexy Billboard Performance

After making a jaw-dropping appearance on the red carpet, Britney Spears opened the Billboard Music Awards on Sunday night with an epic mashup of her iconic songs. Britney slayed a handful of her biggest hits, from "I'm a Slave 4 U" and "Toxic" to fan favorites "I Love Rock 'n' Roll" and "Breathe on Me" — and don't even get us started on how insane her body looked in that red bejeweled number. Whether you missed Britney's performance or just want to relive her sexy time on stage, we've got the hot photos.