MONDAY, JULY 7

"GOSSIP GIRL" � (8:00-9:00 p.m. ET)

"Hi, Society" (TV-PG, DS) (HDTV)

MAY I HAVE THIS DANCE? � Serena (Blake Lively) has absolutely no intention of attending the upcoming Debutante Ball, until her grandmother, CeCe (guest star Caroline Lagerfelt), announces that she won't take no for an answer. Unfortunately, Dan (Penn Badgley) isn't exactly what CeCe had in mind in terms of a suitable escort for Serena, and she makes her opinion heard loud and clear, causing a riff between Serena and Dan. Although they are officially broken up, Blair (Leighton Meester) and Nate (Chace Crawford) decide to go to the ball together as friends, but a jealous Nate begins to suspect that Blair may already be seeing someone else. Jenny (Taylor Momsen) finds herself torn between attending her mother's (guest star Susan Misner) art opening or following her dreams to the Debutante Ball, even though it's against her parents' wishes. Finally, Rufus (Matthew Settle) learns the real reason Lily (Kelly Rutherford) broke up with him all those years ago. Ed Westwick also stars. The episode was directed by Patrick Norris and written by Joshua Safron (#109).