A portion of ticket sales from the upcoming off-Broadway production of My Big Gay Italian Wedding will benefit gay marriage group Broadway Impact.

Gay Wedding stars openly gay Reichen Lehmkuhl and opens May 5 at St. Luke's Theater.

The play, which originally premiered in 2003, has been updated by playwright Anthony Wilkinson to reflect the reality of legal gay marriage in 2010. Massachusetts was the first U.S. state to legalize the institution in 2004. Since then, four more states – Connecticut, Vermont, Iowa and New Hampshire – and the District of Columbia have come on board.

“Planning a wedding can be hell,” the play's description says, “or a a hell of a lot of fun!”

In Gay Wedding both happen to be true as the grooms face an obstacle course – a jealous ex-boyfriend, the wedding planner from hell and an overbearing Italian mother – in making their way to the altar.

Hunky Lehmkuhl and former partner Chip Arndt won CBS's Amazing Race in 2003. He also gained national attention in 2006 dating singer Lance Bass.