Gwen Stefani embraced her inner hippie chick and got down with the Rolling Stones on Friday night (May 3) in Los Angeles, where the legendary rockers kicked off their 50 and Counting Tour. Sporting a thin headband, straight-outta-'68 hairdo and sparkly t-shirt emblazoned with the Stones' classic lips logo, the No Doubt singer dueted with Mick Jagger on 'Wild Horses,' surprising anyone in the house who doesn't follow her on Twitter.

"i'm at @STAPLESCenter right now with @RollingStones... surprise!!" Stefani tweeted before taking the stage. "sorry muffins I had to keep it a secret : ) gx."

How'd Stefani fare on the tune? Check it out above, then holler in the comments and let us know whether she totes nailed it or ought to stick with the Specials covers.

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