If you can't remember them, here is their original audition:
And here's how "Idol' will work once they get down to the final 40, which will be pared down to 20 for the live shows. This is a new set up:
AMERICAN IDOL (8:00-10:00 PM ET/PT) – “Semifinalist Round, Part 1”
In a new twist, the competition moves to Las Vegas, where the Top 40 semifinalists will be split into guys and girls. Each night, 10 of the 40 semifinalists will perform and the judges will be faced with the tough decision of choosing which five will stay and which five will be sent home.
Wednesday, Feb. 20 First Group of 10 Male Singers Perform Thursday, Feb. 21 First Group of 10 Female Singers Perform Wednesday, Feb. 27 Second Group of 10 Male Singers Perform Thursday, Feb. 28 Second Group of 10 Female Singers Perform
*Each episode is 2 hours long.
ETA: Live shows begin on March 5 when the Top 20 perform for your votes.
Tuesday, March 5 Top 10 Male Semifinalists Perform LIVE Wednesday, March 6 Top 10 Female Semifinalists Perform LIVE Thursday, March 7 LIVE Results Show; Top 10 Finalists Revealed