Multiple Grammy winning songwriter, producer and arranger David Foster appears in Las Vegas with some of the biggest acts with whom he's worked over a multi-decade career. 'Hitman Returns' was filmed before a sold out crowd last year at the Mandalay Bay in Las Vegas. The lineup of talent, lead by Foster as maestro of ceremonies, includes performances by Seal, Donna Summer, Martina McBride, Earth, Wind & Fire, Natalie Cole, Ruben Studdard, All-4-One,'Glee' star Charice, Chaka Khan, Jackie Evancho, Lara Fabian and other artists whose careers have been touched by Foster. Foster — who has been nominated for an unprecedented 45 Grammy awards, won two Emmys and was an Oscar nominee — has discovered and nurtured the careers of megastars such as Josh Groban and Michael Buble.