WASHINGTON -- After a two-year hiatus, the 4th Annual Bike Prom Friday night at the Black Cat will be equal parts celebration and awareness.

The Washington Area Bicyclist Association is having a party and, wheels or not, you're invited. Especially if you come dressed as a robot.

The theme of the prom, sponsored by bike-friendly New Belgium Brewing Company, is "Bike To The Future." Attendees are encouraged to don their finest shiny, robot themed attire.

WABA event coordinator Nelle Pierson is making it a "happy, feel good utopia take on the future."

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"We'd like to bring folks together that don't realize there are folks that are interested in the same stuff," says Pierson. "Engage in conversations to take it to the next step, figure out how to get more people on bikes, how to get the city to recognize there are more people on bikes."

So why robots? "Robots are making a comeback! I wanted to dress as a robot for Halloween so I figured I'd like to get 400 people together dressed as robots."

Tickets for the event are $10 for members and $15 for non-members. Interested in becoming a member? The bike advocacy group will be offering year long memberships for $10 off their regular yearly rate.