At last night's Sounds Like PAPER party, sponsored by Converse, and featuring a special performance by cover-boy Pharrell Williams' band N.E.R.D. (and special guests Jermaine Dupri and Swizz Beatz), the kids were in a serious frenzy. It was a like a madhouse up in Santos' Party House, as a fast-spreading, non-malevolent happy virus spread throughout the room. Here are some pics of the performance. More photos of party-goers to follow....