TMZ can show you just ten quick seconds of Brit's rehearsal for tonight's "MTV Video Music Awards."



Brit's performance will feature acrobatics, magic, dancing, her trademark lipsynching -- and lord only knows what else -- and what weave?! This is a huge night for Britney -- she might be on her way to repairing her career -- or back on the train to Crazytown!

Either way, ya gotta love her!