Ari Horowitz with label executive Damon Dash, above.

Click here for the gallery of party pics by Jon Feinstein!

Last night, we threw a rooftop party celebrating the release of BlackBook magazine's new Music Issue (on sale now!). With free pour from St-Germain (damn you free pour, we just can't quit you!) and sushi courtesy of our friends at BONDST, people drank, danced, and forgot that they were missing the season premiere of "The Office."

Guests included super-producer Damon Dash, designer��������and "Project Runway" alum��������Keith Michael, along with "SNL" shutterbug Mary Ellen Matthews (whose beautiful images appear in the latest issue of BlackBook magazine) and Kim from Cycle 5 "ANTM!" (Don't judge us.) ��������N.H.