Lionel Richie Takes Shots At Usher & Chris Brown Tour Onstage In Phoenix

Usher and Chris Brown are currently co-headlining a massive stadium tour, which has yielded lots of bizarre controversies, surprisingly all involving Usher and not Brown. Usher went viral for inviting a woman onstage in Nashville for some faux-flirtatious grinding and then dismissing her when she clearly wasn't into the bit. He went viral again for allegedly sending a body double onstage in New…