Britney Spears Stuns with Hits-Filled Medley at Billboard Music Awards: Watch

It's Britney Spears again, b-tch! After performing "Pretty Girls" alongside Iggy Azalea at the Billboard Music Awards last year, the pop icon returned tonight and rocked the stage all on her own. As previously announced, Spears (who has six BBMAs under her belt) performed a medley that featured her classic singles as well as unexpected deep cuts.

The singer looked sexier than ever in a lipstick-red bedazzled bikini outfit as she opened her performance with her 2013 single "Work Bitch," before ripping through fan favorites like Circus' "Womanizer," her 2001 version of "I Love Rock & Roll," In The Zone's "Breathe On Me" and Britney's "I'm a Slave 4 U." "Toxic," of course, made for a stirring finale.