Rihanna sang "Where Have You Been" on American Idol last night, and while her performance didn't pack the punch we'd expect, from her loincloth-inspired skirt to her new dreadlocks, there was plenty to look at!

The 24-year-old pop star showed off her new 'do on Twitter yesterday, and we weren't sure if it was a weave or a wig, but after watching her take the stage last night, it's definitely the real deal! But how long will she keep her hair this way? Whether it's color or cut, she's quite the chameleon...

dbdddcbaa4fe11e1b2fe1231380205bf_7.jpg