The Rolling Stones brought their 50 and Counting tour to the MGM Grand Arena in Las Vegas last night. The band was joined by pop star Katy Perry toward the beginning of the first set for “Beast of Burden.” The song, which was last played at 02 Arena in London in 2007, was chosen by fans via a social media poll. Mick Taylor later sat in with The Stones on “Midnight Rambler” and the show closing “(I Can’t Get No) Satisfaction.” Taylor will be joining the band throughout the tour, and so far those two songs are the only two he has sat in on. The Rolling Stones will make their next stop at the Honda Center in Anaheim, CA on May 15.