After her odd call-in interview to Ryan Seacrest‘s radio show Wednesday morning, it was time for Britney Spears to kick off her Halloween festivities that literally went all night long. The 25-year-old mother of two spent the day with her boys, Sean Preston, 2, and Jayden James, 1, but once they were back in daddy Kevin Federline‘s arms, the real party started for the Britster. And OK! is here to give you a blow-by-blow of her Hallow’s Eve itinerary.

10:00 a.m.: Sean Preston and Jayden James arrive for a day of fun and monitored observance with their mommy at Summit. Per court order, Britney is allowed now three monitored visits per week with her sons.

2:00 p.m.: Along with the court-assigned observer, Brit and the boys take a joy ride into Beverly Hills, but don’t stop anywhere and come home. Along the way, the newly licensed driver makes at least two illegal U-turns!

5:50 p.m.: Brit drives the boys and the monitor over to the Maloof brothers’ house for a party and returns home an hour later.

8:35 p.m.: K-Fed’s team pick up the boys, who are supposed to be brought back to daddy by 7 p.m. Perhaps an exception was made for Halloween?

12:05 a.m.: The night is young! Decked out in a belly-baring hot pink and black leopard pattern catsuit, complete with a long tail and ears and an oversized pink sombrero, Britney kicks off the night at The Green Door Club in Hollywood. She arrives in a black Escalade limo with Alli Sims and Sam Lutfi. While Britney appeared heavily sedated, her posse was in full-out party mode with Alli dressed in a school girl outfit with a personalized X-17 name tag. Is this a shout-out to “Baby One More Time”?

The pop star spends approximately 40 minutes inside the club, where she was seated in a circular velvet booth in the center and then moved to the back for more privacy. While Alli broke it down on the dance floor, Brit uncharacteristically chose not to show off any dance moves, opting to puff away on Marlboro Lights. She wasn’t up for socializing either — fans were prohibited from approaching her and at one point, she tells a bouncer she’s uncomfortable with everyone’s stares.

12:48 a.m.: Brit finally has enough and departs the Green Door, where major insanity ensues.

2:00 a.m.: Because of roadblocks, it takes more than an hour for Britney to arrive at her next destination — a house party in the Hollywood Hills, where she remained the rest of the evening. Who calls it a night this early?

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