Disney star Joshua Rush, who played Disney's first openly gay character in Andy Mack, has officially come out as bisexual in a series of tweets.

"First to respond to this tweet is bi lol," Rush, 17, tweeted

"first! i win! it's me. i'm bi. And now that I've said that, I have a few things to rant about. There are more important things to talk about than me liking a whole bunch of genders, but I do want to share a few things with you guys."

He continued:

"I saw so many of you watch Cyrus come out and said 'Hey! I can be me!' How ironic, isn't it, that me, playing that character, never had mustered up that courage?

"Instead of feeling the courage to tell you today that I am an out and proud bisexual man because of the character I played for four years, I feel that courage thinking of all of you, who felt emboldened by Cyrus to come out."

Rush then urged his supporters to donate to GLAAD.