NBC's new show, called Best Time Ever With Neil Patrick Harris [1], is already looking like one of the funniest shows on the horizon. In a clip posted this week, Neil disguises himself as Jurgen, the host of The Voice's new companion show in Austria. Neil proceeds to interview Gwen Stefani [2], Adam Levine, and the rest of the judges — in character, of course — then takes things further by auditioning! We were expecting some shenanigans in the wake of all his jokes at the Oscars [3], but this is seriously next level. Watch the full video above for the hilarious prank . . . their reactions are priceless.