In the clip, which she shared without a caption, Spears wore a sheer black bodysuit, black suede boots and tan cowboy hat as she moved along to the music in front of a fireplace.

Britney Spears' latest dancing video not only features ex Justin Timberlake's music — she's doing her whole routine to the 2002 track. The "...Hit Me Baby One More Time" hitmaker, 43, frequently shares videos of herself dancing on Instagram,

The “Toxic” singer posted a clip of the 18-year-old freestyle-rapping while swaying around the foyer of her $7.4 million Thousand Oaks, Calif., mansion.