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.