Tennis legend Martina Navratilova and Rhode Island Congressman David Cicilline have expressed their support for Prague Pride 2013.

Now in its third year, Prague Pride is the largest LGBT festival in Eastern Europe, attracting thousands of revelers to the week-long event.

Cicilline, an openly gay Democrat, is supporting the festival in person.

“I think it is very important to support Prague Pride and pride celebrations around the world, because they raise the visibility of our community and they make an important point of how critical it is that we recognize the rights of gays and lesbians to be treated equally under the law and to be free from discrimination of any kind,” Cicilline told Radio Prague. “These celebrations are a wonderful opportunity for good public discussion about the issues involved and there’s a whole week of debates and talks and seminars on the importance of coming out and respecting equality for the gay and lesbian community. So I am thrilled to be here and very proud that our ambassador has been such a strong supporter of Prague Pride and of this whole week of events.”

Organizers expected 15,000 people to join Saturday's Gay Pride Parade.

Navratilova, a Czech-American, showed her support in a video released Wednesday by the NOH8 Campaign.

“Please support Prague Pride,” Navratilova says in the 14-second video. “We need you.” (The video is embedded on this page. Visit our video library for more videos.)