Carrie Underwood Performs with Rolling Stones: Holy Cow!

Carrie Underwood Performs with Rolling Stones: Holy Cow!

So, what did you do on Saturday night?

Carrie Underwood? She celebrated the eight-year anniversary of her American Idol victory by taking to the stage with The Rolling Stones in Toronto. Yes, those Rolling Stones!

Tweeted the superstar soon afterward:

I just sang with the @RollingStones! Holy cow! I walked off stage and said, “What just happened?!” Still can’t believe it! :).

Watch the musicians sing "It's Only Rock & Roll" now:

Carrie Underwood Sings with Rolling Stones

The Hollywood Gossip