Givenik.com is giving away a pair of tickets to the Hair performance, which will take place Sept. 9. Hair alumni from Central Park, Broadway and the West End will be in attendance to celebrate the end of the "Summer of Love" Broadway engagement.

To enter, "like" Givenik on Facebook at www.Facebook.com/Givenik. On Givenik's page, share the "Foursquare Swarm-In" video, which also can be found here, and include in your post, "The HAIR Tribe takes over Times Square! LIKE @Givenik at www.Facebook.com/Givenik for a chance to attend HAIR Alumni Night on Sept. 9th!" After posting to your page, alert Givenik by leaving a comment on their Facebook indicating that you've shared the video by Sept. 5.

Playbill.com has learned that the winner of the tickets will be sitting next to an actual alumnus from Hair.

Hair will run on Broadway through Sept. 10. The tour is scheduled to continue across the U.S. following the Broadway return, with stops planned in Dallas, Denver, San Francisco, Philadelphia and Toronto.