419 Pretty In Pink

Serena enlists Charlie to go undercover Gossip Girl-style to determine why Dan and Blair are spending so much time together, and what role an unexpected visitor is playing in their lives. With Nate's help, Raina decides to go on a search for her long-lost mother. Chuck's hopes about his legacy are dashed with the reveal of devastating information from the past.

Two Hours Traffic - Noisemaker 

The Ting Tings - Hands 

The Vaccines - If You Wanna 

Danica 'The Morning Star' Rozelle - Kiss Kiss Kiss

The Asteroids Galaxy Tour - Safety Dance

The Pierces - We Are Stars 

Oh Land  - White Nights

XOXO

418 The Kids Stay In The Picture

As Lily awaits the consequences of her decision, William van der Woodsen, CeCe and Lily's sister, Carol, come into town to support her and be part of a Taschen photo shoot on "modern royalty" in which the Rhodes family is participating. Unbeknownst to Carol, who has always chosen to keep her daughter Charlie far away from the Upper East Side, Charlie has followed her to New York to meet Serena and the rest of the family. Blair has an epiphany about her future, and grapples with the knowledge of whom she's destined to be with.

Sola Rosa - Del Ray

Sola Rosa - King Of Hush

The Shapes - Escape From New York

The Mercies - Out Of Nowhere

Electric Sunset - Prayer

I Blame Coco - Self machine

Hurricane Bells - The Deep End

The Naked And Famous - The Sun

XOXO