Stylish Harry Potter and the Deathly Hallows Part 2 star Emma Watson wore a Balmain dress and platinum jewelry by Lorraine Schwartz at the Ed Sullivan Theater for an appearance on The Late Show with David Letterman on 11 July 2011 in NYC. Her appearance garnered a lot of press when Letterman pushed Watson about her drinking habits and the posh star reluctantly admitted that she's been drunk once.