The Rolling Stones stopped by Toronto's Air Canada Centre last weekend and brought out special guest Carrie Underwood during a lively performance of "It's Only Rock n' Roll (But I Like It)." The rockers launched into their 1974 track with electric energy, and as Mick Jagger approached the chorus, Underwood strutted onstage and went face to face with Jagger on dueling vocals. The former American Idol winner got her time to shine too, briefly singing solo before Jagger joined back in. And as Ronnie Wood, Keith Richards and Charlie Watts took it home, Underwood and Jagger boogied down with those moves he practices right in front of the mirror. The Rolling Stones' "50 and Counting" tour continues Tuesday at the United Center in Chicago.