Beyoncé hit up 30 Rock for her first appearance on “Late Night with Jimmy Fallon” on Thursday night. Backed by the world famous Roots crew, the white-hot singer performed a reworked version of her single “Best Thing I Never Had,” boasting a new arrangement. A “Late Night” staffer overheard B asking ?uestlove and the band if she could bring them on tour with her. You’ll see why after watching their performance.