Taylor Swift Joins Mick Jagger on Stage at Chicago Concert

When it comes to pairings we never thought we'd see, Taylor Swift and Mick Jagger rank somewhere near the top of the list. But last night in Chicago, it happened. During the Rolling Stones concert at the United Center, the band was barely a few bars into "As Tears Go By" when Swift appeared alongside Jagger to lend her voice. It probably took some fans by surprise, but it wasn't exactly a secret seeing as Jagger tweeted about it earlier in the day: Looking forward to singing with @taylorswift13 tonight! Wonder which song we will do? — Mick Jagger (@MickJagger) June 3, 2013 After the show, Swift also took to her Twitter account to share her excitement, saying, "Filing this under 'never in my wildest dreams'. Thank you @rollingstones for inviting me to Chicago to sing with you." Hard to believe, we know, but cameras don't lie. Watch the performance below: