Watch Stevie Wonder Sing "Happy Birthday" to Steven Tyler on 'American Idol'!

The spirit of Motown invaded American Idol again last night when legend Stevie Wonder took the stage to sing a special "Happy Birthday" tribute to judge Steven Tyler, that had the whole crowd up on their feet!

The Idol results show was certainly one for the record books last night, with everyone still talking about the epic save of Casey Abrams, who looked as if he was about to faint.

OK! VIDEO: WATCH CASEY ABRAMS SING FOR HIS LIFE ON AMERICAN IDOL

But the first exciting moment of the night came during the group number, followed by the contestants lining up on either side of the big screen, which opened and revealed the Motown legend!

All the contestants danced on stage with Stevie and Jennifer Lopez and Randy Jackson brought Steven up on stage for the special tribute.

The Aerosmith frontman turned 63 yesterday!