Hottest Videos -- Week of 12/2

12/8/2007 5:00 AM PST BY TMZ STAFF

Britney Spears celebrated her 26th birthday last weekend -- but Paris Hilton jacked some of the spotlight by leaving at the same time! Look at me, y'all!
A befuddled Paris hopped into the wrong SUV outside of Crimson -- where a random rider got randy with her facial real estate.

TMZ has obtained surveillance video of Jessica Sierra at a police station, following her arrest on Dec 1 -- and it's not a pretty sight!

Brad Pitt, hello! The hunk didn't hesitate to correct the King this week -- quickly cutting Larry off when he insinuated that Brad hooked up with Angie before his divorce from Jennifer Aniston.

Bill O'Reilly, starting fights with Alien Life Forms -- since 2007.