Take a sneak peek at 10 THINGS I HATE ABOUT YOU "Fight for Your Right" Episode 9 airing Tuesday September 1 2009 at 10PM ET/PT.

Episode Synopsis: "Fight for Your Right" Episode 9 - When Walter Stratford goes out of town; his girls go a bit crazy with a house party. Bianca believes the party will help make her legendary and Kat brings her own "responsible" touch to the party with recycle bins and designated driver wristbands - and a very special karaoke performance. Is Kat finally letting loose? And will they really get away with throwing a house party? Find out in an all-new episode of ABC Family's original series, "10 Things I Hate About You," premiering Tuesday, September 1, 2009 (8:00 - 8:30 PM ET/PT). The episode, entitled "Fight for Your Right," was directed by Henry Chan and written by Erin Erlich.

Meanwhile, the party stirs up relationship trouble for Chastity and Joe, while Patrick makes an unexpected appearance to clear the air with Kat after abandoning her at the dance. And Cameron is clueless to the fact that the watermelon he is "snacking" on has an extra special ingredient.