What would the Maroon 5 frontman and "The Voice" judge do if he were president? Well, Adam Levine would legalize same-sex marriage for all LGBT Americans, including his brother, Michael who is openly gay. "I can single-handedly dispel any ideas that sexuality is acquired," he told Out magazine in 2011. "Trust me, you're born with it. My brother is gay, and we knew when he was two. We all knew."
In a 2009 interview with The Advocate, Chris Evans accidentally outed his brother, Scott Evans. The younger gay brother assured Chris that it was fine, and since, the Captain America star has been a vocal straight ally, speaking up for marriage equality last year.