Usher, Backstreet Boys, Janet Jackson on Las Vegas Strip scene

Usher, Backstreet Boys, Janet Jackson on Las Vegas Strip scene Usher’s festival was wiped out, but he wasn’t. The R&B superstar and co-founder of “Lovers & Friends” headlined “Bad Girl: 20 Years of Confessions” at Jewel at Aria late Friday night. Hours earlier, the festival scheduled for Saturday at Las Vegas Festival Grounds was called off under a threat of high winds. The show was sold out. Organizers had expected a crowd of 65,000. The show at Jewel was Usher’s …