Drake surprises as 'American Idol' final four sing Alicia Keys and Stefano Langone returns

"American Idol" is cutting to three finalists tonight -- or are they? Ryan Seacrest promises a "surprise twist" so we'll see. They start things off with the group singing Alicia Keys' "Girl on Fire."

It's a strong, enjoyable performance; choreography isn't anything special and they don't interact much, but oh those voices...

After the break Kree Harrison's rocky performance is rehashed, and then Stefano Langone, who sang a couple seasons ago, is back to perform for some reason. Not sure anybody was clamoring to hear him....

He's actually pretty good, doing "Yes To Love" -- nice tone to his voice, good passion; veering on the edge of corny but for one song it's not too much.

Audience shrieks for like a minute, Glover is over the moon and the other contestants rush up to meet him too. Drake's got a huge smile on his face.