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.

In the second video, Jayden, now wearing dark shades indoors, walks around mumbling as Britney screams, “Well that was really good! My son just played! Oh my God! I felt it in my bones, and my heart, and my lungs, and my a–, and my throat and my…,” as Jayden appears to complete the thought with “my d–k.”