'Gossip Girl'(8PM, The CW)
The annual Snowflake Ball provides the Upper East Side teens with an opportunity for romance, but, as usual, exactly who'll be, ahem, Ball-ing with who is up in the air.
Serena is happily ensconced in her new relationship with artist Aaron, but when his ex-girlfriend shows up at the gallery and starts making plans with Serena's ex, Dan, Miss van der Woodsen gets jealous.
Meanwhile, Nate finds himself in a love triangle with pals Jenny and Vanessa, and Chuck and Blair meet a pair of lookalikes and counsel them on how they -- the dopplegangers -- can make a relationship work where they -- the real Chuck and Blair -- can't.
