I won't lie I don't agree with Sia, I don't think her being married to a man gives visibility to gays and lesbians. I've noticed most famous women who say they're bisexual date mostly men or are in relationships with men
Oh nvm this list is just about people who self-identify as Lgbt so I guess in that sense that's why she is there. Eh. Also maybe Gaga was snubbed because she wasn't as active in 2014 and this list is more based on last year? I don't know.