Moments after releasing it online, Beyoncé debuted “1+1,” the opening track from her upcoming album 4, live on the “American Idol” finale. “This is my favorite song,” said B before flexing her vocal chops in a purple dress with red lights and smoke surrounding her. The performance earned her a standing ovation from the judges and crowd at L.A.’s Nokia Theatre.



Six of “American Idol’s” top female contestants took the stage during the “Idol” finale to perform a medley of Beyoncé’s greatest hits including “Single Ladies (Put a Ring On It),” “Irreplaceable,” “Get Me Bodied,” “If I Were a Boy,” and “Deja Vu,” before being joined by B herself for “Crazy in Love.” Ain’t nothing like the real thing, baby.