Tonight in L.V.: Jason Derulo at 1 OAK, Cameo at Westgate, Ondori, Byra Tanks

R&B and funk chart-toppers Cameo from the 1970s and ’80s with “Candy” and “Word Up” launch their residency at Westgate Las Vegas cabaret showroom, which means Jennifer Romas and her “Sexxy” topless dancers move back to the 10:30 p.m. time slot.