If you know nothing else from Bad Boy rapper Machine Gun Kelly, you know “Yeah, b*tch! Yeah, b*tch! Call me Steve-O! I’m a wild boy, I’m a, I’m a wild boy!” It’s been two years in the making, but on Friday night, MGK and “Jackass” star Steve-O were finally in the same place at the same time for a live performance of Kels’ breakout hit “Wild Boy” together. On stage at the House of Blues in Atlantic City, NJ, Steve-O surprised the packed house and even crowd-surfed during the performance (and lost his shoes, LOL.) After the show was over, MGK and his crew celebrated the one-year anniversary of his debut album Lace Up, as well as the birthdays of his drummer Rook, his hypeman Slim and his road manager Dre…all thanks to a DOPE cake from IFWT family Julie and Judicke’s Bakery in Bayonne, NJ. Check out video of Steve-O below and pics of the celebration and more in the gallery.