ET has all the party-happening action from the TV Guide Sexiest Party, which will celebrate the mag's issue -- now on stands -- dedicated to the sexiest stars on television -- many of whom will be on hand.

The bash, held at Katsuya and S Bar in West Hollywood, was attended by this week's cover girl JENNIFER LOVE HEWITT, ALEX O'LOUGHLIN, PAULA ABDUL, newlywed TIA MOWRY, CHERYL BURKE, CRISTIAN DE LA FUENTE, and many more.