Jason Mraz has announced via his official website that he’ll be a “special guest performer” on this Wednesday’s American Idol finale.
Mraz joins a list of artists who’ve already been announced: David Cook, Lionel Richie, Carlos Santana, Cyndi Lauper, Queen Latifah, Black Eyed Peas and Keith Urban.
Rumors are currently flying around the internets that Idol producers are trying to set up David Bowie to duet with Adam Lambert.
The band KISS is also rumored to appear.
UPDATE: Keith Urban will be dueting with Kris Allen, Cyndi Lauper with Allison Iraheta.
The producers are trying to get as many Idol winners back on the finale as possible…