Jennifer Lopez and Marc Anthony to Duet at Grammys

(andPOP) - Since getting married, Jennifer Lopez and Marc Anthony have managed to stay out of the public eye while together. That's about to change February 13 at the Grammys.

Their first public appearance together will be in the form of a duet to begin the Grammy Awards broadcast.

The couple have recorded several songs together over the years, including one from her upcoming album, "Rebirth."

They may also perform separately; the song is not confirmed.

Also performing at the show will be a medley of artists singing The Beatles' "Across the Universe": Bono, Stevie Wonder, Norah Jones, Alicia Keys, Velvet Revolver, Tim McGraw, Brian Wilson, and more. The song will be released later on iTunes to benefit Tsunami relief efforts.

Hoobastank, Alison Krauss, Tyra Banks and Steven Tyler will present, while Queen Latifah will host the show.