LinkedIn's $1 billion valuation certainly seems low only when compared to the stratospheric $15 billion Facebook is worth on paper. One reason why is because, frankly, college kids are sexy — as the VCs in the announcement infomercial prove irrefutably, business professional who use LinkedIn are not. So if you're going to announce a new round of venture capital with a video on YouTube, why not make it a music video? The kids love music videos. Hence, Valleywag presents "The Upside" featuring Jeffrey "Sand Hizzy" Glass, David "D-Cup" Sze, David "Dollar Billz" Cowan and Mark "Make Money" Kvamme over beats from EPMD. Recognize.