Bringing back a beloved nightlife brand is a risky proposition, but the new Light Nightclub feels less like a remake than a total reinvention. The Mandalay Bay party palace blends Cirque du Soleil performance with John Lyons sound, superstar DJs and eye-popping design for an experience that stands (way) apart from the rest. Welcome back. Mandalay Bay, 588-5656. Fri & Sat, 10 p.m.