The Top 12 finalists will perform LIVE for the nation, vying for the American Idol crown. In this show, contestants will sing their hearts out in hopes of winning America's vote and surviving another week in the competition.

Tonights theme: 60's Night.

Performing tonight: Anthony Fedorov, Anwar Robinson, Constantine Maroulis, Harold "Bo" Bice, Nikko Smith, Scott Savol, Carrie Underwood, Jessica Sierra, Lindsey Cardinale, Mikalah Gordon, Nadia Turner, and Vonzell Solomon.

Episode Viewers and Ratings

Season 4 Episode 20 of American Idol resulted in a 0.00 rating in the 18-49 demographic.

American Idol Season 4 Episodes...

• s04e01 - Washington D.C. Auditions
• s04e02 - St. Louis, Missouri Auditions
• s04e03 - New Orleans, Louisiana Auditions
• s04e04 - Las Vegas, Nevada Auditions
• s04e05 - Cleveland, Ohio & Orlando, Florida Auditions
• s04e06 - San Francisco, California Auditions
• s04e07 - American Idol takes the auditions to the next level... Hollywood! (1)
• s04e08 - Hollywood Auditions Continue (2)
• s04e09 - Auditions Continue in Hollywood (3)
• s04e10 - Auditions Continue in Hollywood (4)
• s04e11 - The Top 12 Boys Perform Live
• s04e12 - The Top 12 Girls Perform Live
• s04e13 - First Result Show Of The Season
• s04e14 - Ten Males Perform Live
• s04e15 - Ten Females Perform Live
• s04e16 - Who Has America Chosen To Stay And Who Will Go Home?
• s04e17 - Eight Males Perform Live
• s04e18 - Eight Females Perform Live
• s04e19 - Top 12 Revealed
• s04e20 - Top 12 Finalists Perform For The First Time!
• s04e21 - One Must Go Home Tonight!
• s04e22 - American Idol's Top 11 Perform
• s04e23 - Top 11 Finalists Re-Vote
• s04e24 - It's Down To The Top 10
• s04e25 - Top 10 Perform Live
• s04e26 - It's Down To The Top 9
• s04e27 - American Idol's Top 9 Perform
• s04e28 - Find Out Who's Been Eliminated From The Top 9
• s04e29 - Top 8 Perform
• s04e30 - Who Is Eliminated From The Top 8
• s04e31 - Top 7 Perform
• s04e32 - Top 7 Results
• s04e33 - Top 6 Perform
• s04e34 - Who Is Eliminated From The Top 6
• s04e35 - Top 5 Perform
• s04e36 - Find Out Who's Been Eliminated From The Top 5
• s04e37 - American Idol's Final 4 Perform!
• s04e38 - Find Out Who's Been Eliminated From The Final 4
• s04e39 - American Idol's Final 3 Perform
• s04e40 - Tonight Is The Night When 3 Become 2
• s04e41 - Bo Bice vs. Carrie Underwood
• s04e42 - And The Winner Is...

American Idol Show Summary

This hit FOX musical reality series follows three judges, Simon Cowell, Randy Jackson (II), and Paula Abdul, along with host Ryan Seacrest around the United States in search of the next American Idol, a pop star that truly shines above all the rest. With help from the viewers, they will decide from thousands of participants who will walk away with a record deal and the fame and fortune that is sure to come along with it.