Former Guns n' Roses guitarist Izzy Stradlin, who skipped the band's induction into the Rock and Roll Hall of Fame last month along with original frontman Axl Rose, proved that there are no hard feelings Thursday when he joined his former band onstage during a performance at London's O2 Arena.  It was the first time Stradlin had played with Guns n' Roses since he took part in a handful of shows in 2006.  With Stradlin, the band played GnR classics such as "Nightrain," "Paradise City," "You Could Be Mine," and even the "Use Your Illusion II" track "14 Years," which the band had not played live since 1991.  Watch clips of the band's performances of "14 Years" and "You Could Be Mine" below.