US TV
ITV/Rex Features
According to US reports, the 'Womanizer' star had been lined up to make a special appearance on Wednesday night's show, which will see Adam Lambert and Kris Allen competing to be crowned the season eight winner.
However, representatives for the singer have since confirmed to Perez Hilton that the rumours are untrue.
Other celebrities who will be performing on the night include Lionel Richie, Carlos Santana, Black Eyed Peas, Cyndi Lauper, Queen Latifiah and Keith Urban, while former Idol winners David Cook and Carrie Underwood will also be present.
Tube Talk
'Simpsons' ultimate countdown (15-11)The countdown of the greatest Simpsons episodes continues.
2012-13 Season
Susanna Thompson joins 'Arrow' pilotSusanna Thompson signs up for a role in The CW's superhero drama pilot Arrow.
US TV Interviews
Debby Ryan talks Disney's 'Jessie'The Suite Life's Debby Ryan stars in new Disney Channel comedy Jessie.
US TV Ratings
Grammy Awards most-watched since 1984The 54th Grammy Awards is seen by over 40 million viewers for the CBS network.
