Rock and roll legends the Rolling Stones are in Brooklyn Saturday night performing at the Barclays Center. So many excited fans came out Saturday night of all ages from all over the country and although the average age is about 68 years old, they probably wont be retiring anytime soon. They may be as old as most grandfathers, but the Rolling Stones still have more moves than guys half their ages. Tonight the Rolling Stones hit Brooklyns Barclays Center for their first of three US shows on their "50 and counting" mini tour. Thats right — theyve been playing for a mind boggling half century. "Were here for the Stones baby!" said one excited fan outside the Barclays Center. Thousands of fans of all ages came out Saturday night from the tri-state area and all over the country. Many of them have seen the rockers multiple times and they say it never gets old. Seeing the Stones cost fans some big bucks. An average ticket will cost you hundreds of dollars. "They were $800 a piece, I mean cmon the Stones are worth it right?" added another fan displaying his pricey ticket. Critics have said that members Mick, Keith, Ronnie, and Charlie should just retire already, but fans say they Stones still got it. One fan was asked if Mick Jagger was still hot? "Oh yeah! Hes always, always hot!" said a happy fan. Clearly the stones are also hot commodities. Their last tour, Bigger Bang, raked in more than $500 million. Theyve sold more than 200 million records thanks to mega hits fans <b>…<b>