Underwood and The Rolling Stones Take Stage (VIDEO)

By Emma Koonse, Christian Post Reporter Tuesday, May 28, 2013

Carrie Underwood joined the Rolling Stones onstage for a special performance that had the crowd in a frenzy on Saturday.

The country music star is the latest musician to collaborate with the Stones along the legendary group's tour "50 and Counting"- Katy Perry, Keith Urban and many others have hit the stage with the famed rockers in past weeks.

Underwood offered her vocals to the Stones' hit song "It's Only Rock 'n' Roll" at Toronto's Air Canada Centre Saturday night, according to The Hollywood Reporter.

Watch the video here.

"I just sang with the @RollingStones," the "American Idol" alum posted to Twitter following the performance. "Holy cow! I walked off stage and said, 'What just happened?!' Still can't believe it!"

The "Jesus Take The Wheel" singer had even more to celebrate on Saturday, which marked the eighth anniversary of her "American Idol" win.

"8 years ago today, I won @AmericanIdol and tonight, I sang with the @RollingStones," she wrote. "Wow, so much has happened! #thankful."

Hours before the performance, Underwood had noted that rockers Mick Jagger, Keith Richards, Charlie Watts, and Ronnie Wood made rehearsing fun and easy.

"Just had rehearsals," the singer posted. "The guys are so great! They made this country girl feel right at home!"

The "50 and Counting Tour" commemorates the Rolling Stones' 50th anniversary and will see 17 dates in 10 cities. It was announced earlier this month and will see stops in Oakland, Las Vegas, Anaheim, Toronto, Chicago, Montreal, Boston, and Philadelphia.

The Stones had some concerts in late 2012 in London, Newark, and Brooklyn as well.

"50 and Counting has been pretty amazing so far," said Jagger, according to the band's website. "We did a few shows in London and New York last year… and had such a good time that we thought… let's do some more."

"It's a good show," added the singer. "Lots of the classic stuff everyone wants to hear… with a few little gems tucked in here and there. The stage is shaped like lips and goes off into the venue so I get to run around in the crowd. It's great fun to be able to get that close to the audience."