A major fast fashion chain and a hot summer music festival are joining forces once again.

You might recall H&M designing a collection solely inspired by Coachella (fringed ponchos, frosted denim shorts, leopard-print dresses) and now Topshop is getting in on the outdoor music action with a variety of stylish activities planned for this weekend's Siren Music Festival in Coney Island, New York.

From 12pm to 9pm on Saturday (July 17), the team behind the cult-followed British import is rolling up to the free Village Voice-sponsored festival in a heart-speckled Topshop van and giving away a $500 shopping spree at the New York City flagship, along with other fun prizes.

To show off Topshop's new makeup line, the company will be serving up free makeovers, where concert goers can choose from festival-themed looks such as "Space Siren" (futuristic minimalism), "Feathers" (a colorful and decorative look), and "Night Eyes" (something bold to grab attention once the sun starts setting).

Then, once music fans are all gussied up (or even if their faces are au naturel), they can hit the Topshop photo booth for a photo souvenir to take home.

Photographer Ellei Johndro will also be on hand to snap pictures of other stylish attendees, which will be posted on Topshop's Facebook page, so those going should dress to impress (as if you don't already know that).

Can't make it to the festival? Check out StyleList's street style slideshow from last year's stellar event.