'American Idol''s Final 6 Sing Andrew Lloyd Webber

David Cook goes Broadway. Did he pull it off? Broadway was in the air as "American Idol"'s Final 6 took on the tunes of composer ANDREW LLOYD WEBBER Tuesday night. Their challenge was, in SIMON COWELL 's estimation, to make themselves "sound memorable yet contemporary." SYESHA MERCADO kicked things off in alluring fashion, performing "One Rock & Roll Too Many" atop a piano in a sexy red dress. RANDY JACKSON approved, saying, "Not only is this your element … That's your best performance to date." PAULA ABDUL concurred, adding, "This is your happy place, and you're real good at it." Even Simon had to admit, "This was one of your strongest performances so far." Next, JASON CASTRO took a stool and mewed the tender Cats tune "Memory." The judges were not impressed. Randy said, "Vocally, for me, it was a little bit of a train wreck." Commenting on his song choice, Paula told Jason, "It's not ... [link]