All four of this year's Best Original Song Academy Awards nominees will be getting their stage time at this year's Oscars ceremony. Yesterday (Feb. 12), it was announced that U2 were added to the show's bill and today (Feb. 13), it was also revealed that the Yeah Yeah Yeahs singer Karen O will also take the stage, according to a press release.

Of course, U2 will be giving its Mandela: Long Walk To Freedom song "Ordinary Love" a television debut at the March 2 telecast but the performance is more notable for Karen O, who will be singing "The Moon Song" from Her. This will be her first ever global television performance (something U2 are a little more familiar with).

U2 and Karen O join Pharrell Williams and Idina Menzel in the Oscars performance lineup. Williams will, of course, be performing "Happy" from Despicable Me 2 while Menzel will be storming the stage with the pinnacle song from Disney's Frozen, "Let It Go."

The four tracks are battling it out for the Oscars' much-coveted Best Original Song award.

Of course, there will be one performer who won't be appearing of performing at the Oscars: Joni Eareckson Tada. Her track "Alone Yet Not Alone," from the little-known movie of the same name, had its nomination rescinded after it was discovered the track's songwriter Bruce Broughton used his influence with the Academy to illegally lobby for the song.

The Oscars will take place on Sunday, March 2 with Ellen DeGeneres as host.

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