Taylor and Katharine will perform different new songs, duets on Idol’s star-studded finale episodes

On tomorrow night’s American Idol 5 final performance episode, Katharine McPhee will perform first and Taylor will follow. He “won the coin toss and elected to go second. Kat and Taylor will each perform three songs at the Kodak Theater on Tuesday,” according to phillyBurbs.com.

Their new songs are rumored to be “Make it Happen” and “Through it All,” MJ’s Big Blog reports, although it’s not clear who is singing what. Producer Nigel Lythgoe confirmed on the TV Guide Channel, however, that they will each perform different songs, a change from past years where both finalists were forced to sing the same crappy song.

On Wednesday, each finalist will perform a duet: Katharine with Meat Loaf (really), according to Us Weekly, while Taylor’s duet partner is not yet known. The third- and fourth-place performers will also perform duets, perhaps as part of one big production number; Elliott Yamin is paired with Mary J. Blige, while Chris Daughtry will perform with Live.

Clearly, those aren’t enough guest appearances to pad two hours on Wednesday night, so Daniel Powter will also appear. He’ll officially ruin his formerly hip song by performing it live, the eight millionth time it will have been played this season. American Idol 4 winner Carrie Underwood will also show up to perform her new single.

And MJ rounds up other rumors, including the possibility that both Clay Aiken and Bo Bice will appear to perform.

Finale Roundup Recap – rumors and news [mj’s big blog]
American Idol Spoiler: Kat With a Side of Meat Loaf [Us Weekly]
American Idol: Katharine McPhee takes the plunge first [phillyBurbs.com]