The Dirrty singer posted a series of pictures of items around her home as she was feeling "sentimental" while cleaning out her closet.

Aguilera, a mother of two, then turned the camera around and shared a risque snap of herself in the bathroom mirror. The singer can be seen wearing only a hat and pink underpants while her arms and cell phone cover her bare breasts and face.

In the caption, she writes, "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."