Constantine Maroulis Sings 'Unchained Melody' on 'American Idol'

Continuing their tenth season celebration by reaching into the archives, 'American Idol' (Thu., 8PM ET on FOX) brought back season four contestant Constantine Maroulis for a performance on this week's results show.

Maroulis performed a cover of The Righteous Brothers''Unchained Melody,' which he's also released as a single.

While he's never been the strongest of vocalists, Maroulis' strength was in the smoldering looks he would give to the cameras and his way of charming the ladies.

'American Idol' airs Wednesdays and Thursdays at 8PM ET on FOX.

Now 35 years old, a slimmed down Maroulis brought that same level of intensity and proved he can still work a camera. While it may not have been the strongest version of 'Unchained Melody' we've seen on the show, he remains watchable and entertaining.