Britney Spears showed off her dance moves just hours before she checked herself into rehab.

The singer, 44, voluntarily checked herself into rehab Sunday following her DUI arrest last month, her rep confirmed to Page Six.

But directly ahead of her rehab stay, Spears posted herself dancing in a sheer black thong bodysuit on Instagram. In the video, Spears appeared dangerously close to a wardrobe malfunction as she shimmied and held her top to her chest as she gyrated and smacked her butt.

At one point in the video, she slapped her butt as she showed off her bare back.

Spears was clearly feeling confident with her moves set to Cardi B, J Balvin and Bad Bunny’s “I Like It,” rocking a bright red hat and knee-high black boots.

Later in the video, she ditched her red hat and let her long blond hair flow free as she wiggled her rear end for the camera.

She also posted herself dipping her fingers in a bowl of water and flowers on Saturday, writing, “Touch 🇯🇵.”

On March 4, Spears was taken into custody after authorities saw her swerving in and out of lanes. They also allegedly discovered an unknown substance inside her car during her arrest and she is believed to have been on a cocktail of alcohol and drugs.

She was released the following morning, per arrest records from the Ventura County Sheriff’s Office.

Spears has not remained quiet on social media. On Friday, she shared video of herself dancing in a bright yellow lingerie set and a black fedora.

After her DUI arrest, she also posted videos and photos of her spending time with her two sons — Sean Preston, 20, and Jayden James, 19.

Following her arrest, a source close to the “Toxic” singer told Page Six that both her sons, whom she shares with ex-husband Kevin Federline, were offering their support.