Think she's got one more week left in her?So before we review last night's episode, can we please discuss the guest judges or the celebrity mentors or whatever they're calling them this season? They started out making sense, with Randy Travis and Smokey Robinson. But for the past couple of weeks, it's devolved into weirdness, with neo-pulp film director Quentin Tarantino and last night's Jamie Foxx, who I understand won an Oscar for portraying a singer, but by all accounts isn't a very good sing