[Photo via amediumformat]

Rufus Wainwright is the latest musician to hold a secret, celebrity-studded concert at Rose Bar as part of the increasingly high-profile "Rose Bar Sessions".  Drew Barrymore, Scarlett Johansson, Susan Sarandon, Penn Badgley, Michael Kors and Alan Cumming were among the attendees...-

The intimate Rose Bar concerts have become the preferred venue for celebs to break out their hipster glasses (we're looking at you, Scar-Jo), sit on couches and listen to some tunes. Just like normal people do in LES, Brooklyn, or their basements.

The Rufus Wainwright "session" was understandably a lot more low-key than last month's jam-packed Axl Rose concert, with guests chilling on couches or at tables with drinks, talking and listening to tracks off of Wainwright's upcoming album, "All Days Are Nights: Songs For Lulu."

[Photos via StarTraks and Aaron Stern]

Drew Barrymore, Lucy Liu, Rufus Wainwright

Scarlett Johansson

[All additional pictures by Jonathan Ziegler for PMc]

Susan Sarandon                                 Rufus Wainwright

Alan Cumming, Christian Siriano

Zachary Quinto                             Kahlen Rondot, Sam Mason

Lance LePere, Michael Kors

Gillian Steinhardt, Maagan Zilberman, Zaldy, Jenny Schlemzka, Lee Kiang

Cathal Queally, Holly Jordan          Susan WIndolf, Jim Windolf

Reverend John Delore, Ania Ruskowski, Simona Rabinovitch

Kim Dillard, Steven Devito

Rufus Wainwright