Mischa Barton Debuted a Rectangle of Cleavage

Actress Mischa Barton attends the 8th Annual BritWeek Launch Party at a private residence on April 22, 2014 in Los Angeles, California. Photo: David Buchan/Getty Images

Last night in L.A., Mischa Barton attended the eighth-annual BritWeek launch party wearing a physically precarious drop-neck gown and very serious expression. The black chiffon muumuu, from the Têca by Helô Rocha spring collection, featured an impressive rectangle of cleavage extending from neck to navel, accessorized with a star-and-moon themed Erickson Beamon necklace. On closer inspection, the dress appears to have a layer of nude mesh covering the cut-out, which, in addition to being a proactive step against wardrobe malfunction, also yields a somewhat-uncanny resemblance to a Teenage Mutant Ninja Turtle.