The Beautiful singer also posted a cute daddy -daughter picture and wrote “You light up life. Happy First Birthday, Summer”.
Aguilera, 34 had given the birth to little Summer back last year on Aug. 16.
Last week Christina Aguilera took to Instagram to post a sexy selfie.
Wearing just a tiny pair of pink underwear and a hat, the 34-year-old is seen in the mirror-selfie using only her arms to cover her chest. She has one message: “Just so you know with me, it’s all real, all the time.”
“Felt like it was time to start sharing some personal stuff with you guys … And it’s just the beginning. Night night. X,” Aguilera captioned the photo.
Seriously, do you see how good she looks? We’re interested in knowing why Christina decided that she wants to share more “personal stuff
Aguilera also shared some more intimate pics, including a few of her closet stacked with hundreds of expensive heels. “Clogging the feed with a few of my favorite things… xo,” she wrote.
Aguilera, who is on a break from NBC’s The Voice this season, isn’t the only star to take it off on social media this week.
Check out Christina Aguilera topless selfie below