In the photo, Aguilera posed nearly nude against a white backdrop. Her sultry side profile showed her crouching down, covering her chest with her right arm while gently holding her legs with her left. She completed the look with stiletto heels, a black undergarment, and a matching beret, her hair styled in voluminous curls. She captioned the post simply, "Birthday Suit #44."
The daring style echoed Aguilera's iconic look from the 2010 musical Burlesque, where she played Ali, a young singer chasing her dreams in Los Angeles who ends up performing at a burlesque lounge owned by Tess, played by Cher.
Aguilera has long embraced her sexuality, both in her music and personal brand. As the co-founder and chief brand advisor of the sexual wellness company Playground, she has been a vocal advocate for owning one's body and empowering others to do the same.
"This is such a natural space for me because [sexuality] has always been a huge part of my life, my music, and my world," she told ADWEEK earlier this year. She also addressed societal double standards, saying, "I've been shamed for expressing myself sexually and owning my body, but I believe in empowering other women to do the same. People are often afraid of that."
As a mother to 16-year-old Max and 10-year-old Summer, Aguilera aims to pass on a message of self-confidence and self-acceptance. In a November interview with PEOPLE, she shared, "Defining beauty is about feeling comfortable in your own skin. That's the message I always encourage my kids to embrace."
Aguilera's birthday post is yet another example of her unwavering confidence and her commitment to celebrating individuality and self-expression.
