Celine Dion to sing with Elvis

Celine Dion will raise the dead on Wednesday when she performs a duet with Elvis Presley on hit TV show 'American Idol'.

The odd couple will perform Presley's hit 'If I Can Dream' during the upcoming Idol Gives Back charity benefit.

Dion has been rehearsing for her odd live collaboration with a Presley impersonator, according to TMZ.com.

Celine will perform with a virtual Presley on the show.

'The Idol Gives Back' special will help raise money to fight extreme poverty in the US and Africa.