Gossip Girl

Serena loves her new job in Hollywood but makes a costly misstep when she tries to impress her boss.

Diana has an exciting prospect for Nate.

Nate must decide whether to cross moral lines.

Dan decides to reveal his book to his friends and family.

Serena must choose her job or her relationship with Dan.

Blair auditions her potential bridesmaids.

Several Upper East Siders attend a performance of Punchdrunk's provocative theater experience "Sleep No More."

Serena plans a dream bridal shower for Blair.

Lily, Charlie and Serena eagerly anticipate the Studio 54 party being thrown in CeCe's honor.

Lily officially introduces Charlie to New York society.

Through a series of emotional flashbacks, Blair reveals to Serena what really happened in the aftermath of her tragic car accident with Chuck. VERA WANG appears as herself.

Blair's bachelorette party!

Will the royal wedding be a disaster?

Blair must make a difficult decision about her future.

Nate throws a Valentine's Day party.

Dan's book is showcased by Upright Citizen's Brigade.

William van der Woodsen returns to town.

Ivy finds an unlikely ally in William.

Serena tries to make Lola the next It Girl.

Blair and Dan host a glamorous British-themed Salon.

Nate digs into Diana's past.

Chuck, Nate, Blair, Serena and Lola team up.

Serena poses as Blair at an important meeting.

Blair chooses between Chuck and Dan.