Britney is to quit rehab two days early and is planning to appear at her estranged husband, Kevin Federline's 29th birthday party, reports The Sun.
Britney, 25, had been due to leave the Promises clinic in Malibu next week after completing treatment.
But after avoiding anti-depressants and therapy, Britney has told her family she feels well enough to go to the glitzy bash at LA’s Eleven nightclub.
She also wants to see sons Sean, one, and six-month-old Jayden James.
A Promises insider said: “Bosses would have liked her to stay longer.”