While Lily faces the possibility of jail time and Serena looks for her next boyfriend, Dan and Blair shared their first kiss and Chuck is wrestling with his father’s legacy yet again. It’s a lot to take in, but we have a feeling our favorite Upper East Siders will handle it in stride. Still, every now and then one of them falls off the wagon — sartorially speaking, of course. Let’s review who kept it together and who needs some rehab after Season 4, Episode 17: “Empire of the Son.”

Hot: Blair’s Lady in Red Ensemble

Credit: Giovanni Rufino/The CW © 2011 The CW Network, LLC. Photo: Blair Goes Red in Season 4, Episode 17: "Empire of the Son"

We've been crushing on this outfit ever since we spotted Leighton Meester trotting around NYC in it, and the appeal remains onscreen.

Hot: Lily’s Cream Choice

Credit: Giovanni Rufino/The CW © 2011 The CW Network, LLC. Photo: Lily in Season 4, Episode 17: "Empire of the Son"

Although Russell insisted that orange was Lily’s color, she managed to prove him wrong by looking phenomenal in a lovely cream dress with asymmetrical ruching and cap sleeves.

Not: Serena’s See-Through Disaster

Credit: Giovanni Rufino/The CW © 2011 The CW Network, LLC. Photo: Serena and Lily in Season 4, Episode 17: "Empire of the Son"

We know Serena rarely passes up an opportunity to show some skin, but the odd tigerish stripes on mesh wasn’t exactly the best way to go about it.

Want to know what they were wearing in last night’s episode? We have the scoop here!

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