Christina Aguilera has caused a stir among fans with the cover of her new single, "Your Body."
The pop singer unveiled the cover on Wednesday during a Twitter question and answer session.
"Can't wait for you all to hear it," wrote the 31-year-old on her Twitter account. "Friday it comes out. Here's the single."
The photo featured on the cover accentuates Aguilera's curves as she wears sheer pink fabric draped about her.
Once known for her petite figure, the singer and "The Voice" mentor has defended her curvier body and declared her pride in it.
"The challenge I've always had is being too thin, so I love that now I have a booty, and obviously love showing my cleavage," she confessed to Lucky magazine. "Hey, if you can work it and you can own it, that confidence is going to shine through."
Although "Your Body" will be released to radio on Sept. 14, the song will not be available on iTunes until Sept. 17.
"Be sure to watch 'The Voice' in Monday to see a special clip of the music video," Aguilera added to Twitter.
The divorced singer, who is mom to 4-year-old Max, is releasing her first album since 2010's "Bionic."
Aguilera's new album has yet to be named, but the music will reflect "everything I've experienced until this point … I've been through a lot since the release of my last album," said Aguilera.
"If you love [my 2002 hit song] 'Fighter,' you're going to love my new album," she promised Lucky magazine. "As a 31-year-old woman, I've been uncovering my independence, and it's been really fun to explore in new songs."
Meanwhile, "The Voice" returned to NBC on Monday for its second season, and Aguilera noted that her position on the television series has added to her personal growth.
"It's a big responsibility to help someone express themselves as an artist," she revealed. "I take it very seriously."