Jay-Z and Kanye West shoot for the stars with Beyoncé on the empowering “Lift Off,” one of the most-anticipated songs on Watch the Throne. Produced by Kanye, Jeff Bhasker, and Mike Dean, Jay and ‘Ye take a back seat to B, who soars over horn blasts and martial drums as she sings, “We gon’ take it to the moon/ Take it to the stars.” Commence launch sequence is 3, 2, 1…