Kristen Wiig Bares (Almost) All In Stunning Grammy Performance With Sia

There were a lot of unexpected pairings at last night's Grammy Awards. Annie Lennox rocked the stage with Hozier. Paul McCartney joined Rihanna and Kanye to play the new single "Four Five Seconds." Oh, and Kristen Wiig joined Sia for a spirited performance of "Chandelier."  Usually when we see Wiig at an awards ceremony, she's injecting a little comic relief into the proceedings. Remember when she and Bill Hader basically stole the show at this year's Golden Globes? But, Wiig's performance last night was anything but humorous. She and Maddie Ziegler, the 12-year-old dancer who starred in the original video, jumped, spun, and thrashed across the stage in nude body suits. Sia (who was nominated for four Grammys) performed the song with her back to the audience. Below, Wiig, Ziegler, and Sia's breathtaking Grammys performance.