Brandon Flowers

Stuart Wilson, Getty Images

The Killers frontman is one of the most well-known and proud Mormons in the entertainment industry. He recorded a PSA for the church called "I"m a Mormon, a Father, and a Husband" in which he explains how his faith mixes with his rock-star life, and how it's led to him settling down and starting a family. Mitt Romney has revealed he's a fan of the band, though the members says they'll remain neutral when it comes to the election.