Jennifer Lopez
It's the end of an era! Judge Jennifer Lopez goes for the gold from head to toe on the red carpet for American Idol's series finale on Thursday, April 7.
Carrie Underwood
Season four's winner (and, you know, global superstar Carrie Underwood) goes sheer and sexy for the big finale.
Fantasia
The season three winner, who is performing during the two-hour live event, shined in a stunning bronze dress on the finale's red carpet.
Katherine McPhee
Season five's runner-up debuts a new blonde 'do on the Idol carpet.
The Final Two
La'Porsha Renae and Trent Harmon prepare to learn who will be your next American Idol.
Keith Urban
The judge and country super star was all smiles before the big finish.
Maddie Ziegler
The new So You Think You Can Dance judge (and Sia's music video mini-me) helped to say goodbye to the fellow Fox reality show.
Kris Allen
Season eight winner Kris Allen and his wife Katy O'Connell are expecting their second child.
Lauren Alaina
The season 10 runner-up goes monochrome for tonight's big send-off.
Pia Toscano
The season 10 standout, who released two singles the day of the finale, rocked a risque red cut-out dress.
La'Porsha Renae
As one of tonight's final two, La'Porsha is positively sparkling ahead of finding out if she's the fifteenth and final winner of American Idol.
Constantine Maroulis
The season four finalist has gone on to find success on Broadway, even earning a Tony Award nom for his work in Rock of Ages.
Bo Bice
Where'd the long hair go?! The runner-up of Carrie Underwood's season, the country singer returned to help say goodbye to the show.
Jordin Sparks
The season six winner is all smiles on the red carpet for American Idol's big farewell.
Jennifer Lopez
Another shot of J.Lo's stunning finale dress and its gorgeous train.
LaToya London
Season three's fourth-place finisher donned a cute springtime look.