Dr. Martens is sponsoring a series of free shows this fall in NYC and L.A. The NYC shows are mostly Dr. Martens stores, with some shows at Brooklyn's Baby's all right as well:

Sep 6 - Eleanor Friedberger @ Dr. Martens Smith St
Sep 13 - Public Access TV & "Special Guest" @ Dr. Martens Herald Square
Sep 25 - Summer Salt, Purr, Oso Oso @ Baby's All Right
Sep 27 - Margaret Glaspy @ Dr. Martens Soho
Oct 4 - A Place to Bury Strangers @ Dr Martens Union Square
Oct 11 - Diet Cig @ Dr. Martens Lexington
Oct 27 - Surfbort, Ruby TM, Fascinator @ Baby's All Right
Nov 14 - Thick, Navy Gangs, Fruit & Flowers, Dentist @ Baby's All Right

You do need to RSVP to attend.

You can check out the L.A. schedule (which is not as extensive as NYC) here.