Sting is opening up about his exciting new Las Vegas gig. The 70-year-old legendary musician sat down with ET's Denny Directo about his «My Songs: The Las Vegas Residency» at the Colosseum at Caesars Palace and he talked about being a fan of fellow artists' Vegas residencies as well.Sting told ET he watched both Lionel Richie and Lady Gaga's successful shows.«Well, I had to check out the competition, you know, I'm not stupid,» he joked.