Steven Tyler 'Dream On' on 'American Idol'

Singer and 'Idol' judge shows off his vocal chops with 'Dream On'

After months of promises, American Idol judge Steven Tyler finally performed on the show's season finale. Backed up by members of Stone Temple Pilots and a string section, Tyler delivered a powerful rendition of the Aerosmith classic "Dream On" that came out sounding like a message to all the show's contestants – past, present and future. The most amazing thing about this performance is that even when cut down to just two minutes, the song still comes across as a massive rock epic.

Related:
Photos: The American Idol Star-Studded Season Finale
'American Idol' Finale: King Scotty Reigns Supreme
Video: Bono and the Edge Perform "Rise Above" on Idol Finale
Video: Lady Gaga Sings "Edge of Glory" on Idol Finale
Video: Beyonce Premieres "1+1" on Idol Finale