Britney Spears BritParentingClass112807.jpgOur girl Brit sure is a trooper! X17 can Xclusively report that the Piece Of Me singer - who wrapped up her music video shoot this morning at 6:30 - made sure to attend her parenting class just 3 1/2 hours later (10 a.m.), and it went until 1 o'clock this afternoon - just a little over an hour ago! K-Fed was there as well.

Even though Britney's been awake all night, she knows it's important to keep her promises. Good goin', Brit!