Trailblazers , an upcoming special airing on the Logo cable channel on June 26, boasts quite the star-studded lineup.
A Great Big World and Sia will perform on the special , which pays tribute to pioneers who've fought for gay equality and marks the one-year anniversary of the Defense of Marriage act being overturned, paving the way for gay marriage. Sia will perform her hit "Chandeliers" with the New York City Gay Men’s Chorus on the show.
In addition, the show will feature appearances by Demi Lovato , Macklemore & Ryan Lewis , Pete Wentz , Ariana Grande , Iggy Azalea and openly gay performers Tegan and Sara , R.E.M 's Michael Stipe , Mary Lambert and Neon Trees frontman Tyler Glenn .
The special will be filmed at at New York City's Cathedral of St. John the Divine, one of the first churches in New York to host gay marriages.
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