Holliday, who is best know for her Tony-winning performance as Effie White in Dreamgirls, sang with "Idol" runner-up Jessica Sanchez. The duo performed "And I Am Telling You I'm Not Going," Holliday's signature show-stopping power ballad from Dreamgirls and a song that Sanchez performed earlier this season in the competition.

Also featured on the season finale were Season Six winner Jordin Sparks, who was seen on Broadway in In the Heights; Season Three winner Fantasia, who appeared in Broadway's The Color Purple; and newly engaged couple Ace Young and Diana DeGarmo, former "Idol" contestants who appeared together on Broadway in Hair.

Here are the performances and highlights from the Season 11 "Idol" grand finale.

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The top 12 "Idol" finalists performing "Runaway Baby" by Bruno Mars:

Contestant Joshua Ledet performing Elton John's "Take Me To The Pilot" with Fantasia:

Grammy Award winner Rihanna performing "Where Have You Been":

Finalist Sanchez performing the late Whitney Houston's "I Will Always Love You":

The first "Idol" engagement—Young proposes to DeGarmo:

Contestant Hollie Cavanagh performing "You'll Never Walk Alone" from Carousel with Sparks:

The male finalists pay tribute to the late Robin Gibb with a medley of his songs:

Sanchez performing "And I Am Telling You I'm Not Going" with Grammy winner Holliday:

Sanchez and Phillips perform "Up Where We Belong" by Joe Cocker and Jennifer Warnes:

"Idol" winner Phillips performing his coronation song, "Home":