Christina Aguilera Shares Sexy Photo From Music Video Set

Singer, who's just confirmed return to 'The Voice,' shows off her slimmed-down figure on set of Spanish-language track.

Christina Aguilera is looking muy caliente on the set of her new music video, for her duet with Mexican singer Alejandro Fernandez titled "Hoy Tengo Ganas de Ti."

In a new photo from the set, Aguilera is looking slim and toned in a black bra and skirt, standing in front of an open window with the ocean behind her. In another photo posted by Fernandez, Aguilera stands in a Spanish colonial-style mansion wearing a black dress.

The slow jam, a cover of Miguel Gallardo's 1975 ballad, will reportedly serve as the theme song for the Televisa televonela "La Tempestad." Translated, the song's title means "Today I Want You."

Even with new music on the horizon, Aguilera is plotting her return to an old project, "The Voice."

After it was rumored she'd return to her spinning chair on the series, host Carson Daly confirmed it to E! News. Shakira, who has served as Xtina's replacement this season, released a statement about her departure, saying she needs to "get back to my motherhood" and finish work on her album.

With Aguilera back, rumor has it that Cee Lo Green may also reunite with fellow mentors Adam Levine and Blake Shelton, meaning that seat-filler Usher might be out by the end of the current season. Daly couldn't confirm Usher or Cee Lo's plans, but he did say "for the original team to get back together" — meaning Adam, Blake, Cee Lo and Christina — "there's always something special about that."