Steven Tyler, Jennifer Lopez and Randy Jackson on "American Idol." (Michael Becker/AP)

Fox will move the singing competition to Tuesday and Wednesday nights, May 22 and May 23 — because that Wednesday is the final day of the official 2011-12 TV season and the “American Idol” finale will clock one of the show’s biggest audiences — if not the biggest.

But, that means the final “Idol” performance night will air the same night as the second week of “America’s Got Talent with Howard Stern” (NBC had earlier announced its singing competition series, “The Voice” would wrap its second season on Monday, May 7 and Tuesday, May 8).

So, Fox also announced Monday, that “Idol” final performance night will be the only performance night for the rest of the show’s run this season that will be only one hour in length — from 8-9 p.m. “AGT” is scheduled to air on Tuesday, May 22 from 9-10 p.m.

And, that night, after the final “Idol” performance show, Fox has decided to throw its “Glee” finale into the teeth of Stern.

Fox also announced Monday that its too-long running medical drama “House” would call it a wrap on the final Monday of the TV season, May 21, with a one-hour clip-job, 8-9 p.m., followed by the series finale at 9.

Here’s a complete list of finale dates from Fox. Complete, that is, except for the dates on “I Hate My Teenage Daughter” which we’ve already reported is being sent to Summer Burnoff Theatre after a couple more episodes on Tuesday night, and midseason series “Touch” and “Breaking Bad”:

Saturday, April 7:

8:00-10:00 PM Q’VIVA! THE CHOSEN

Tuesday, April 17

9:30-10:00 PM RAISING HOPE

Tuesday, May 8:

9:00-9:30 PM NEW GIRL

Friday, May 11:

8:00-9:00 PM THE FINDER

9:00-10:00 PM FRINGE

Sunday, May 13:

9:30-10:00 PM AMERICAN DAD

Monday, May 14:

8:00-9:00 PM BONES

Sunday, May 20:



8:30-9:00 PM BOB’S BURGERS

9:00-10:00 PM FAMILY GUY (One-Hour Season Finale)

Monday, May 21:

8:00-9:00 PM HOUSE (One-Hour Retrospective Special)

9:00-10:00 PM HOUSE (Series Finale)

Tuesday, May 22:

8:00-9:00 PM AMERICAN IDOL (Pt. 1 – Final Performance Round)

(ET live/PT tape-delayed)

9:00-10:00 PM GLEE

Wednesday, May 23:

8:00-10:07 PM AMERICAN IDOL (Pt. 2 – Grand Finale)