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On tonight’s episode, Blair stands out in a tribal-print Isabella Tonchi dress, Stephen Dweck necklace and Amedeo cuff as she produces her mother’s fashion show. Jenny volunteers to help—only to discover that involves working with frenemy Agnes (guest star Willa Holland). Click on to get more dish about the upcoming episode (airing Monday, March 30 at 8pm EST on the CW) and find out exactly what the girls are wearing—head-to-toe!