"I have made the choice to step down from hosting this year's Oscar's", Hart wrote. "This is because I do not want to be a distraction on a night that should be celebrated by so many incredible talented artists".
Hart posted on Twitter an apology to the LGBTQ community for his past words.
Just hours earlier, Hart, who is now in Australia, posted a video posted to Instagram saying he had received a call from the Academy telling him to apologise or he would be removed as host.
In an earlier Instagram post today, Hart addressed the controversy and said, "I'm nearly 40 years old and I'm in love with the man that I am becoming".
While he states that he "love [s] everybody", he feels he should not be accountable for his past actions as people "change, grow, [and] evolve as they get older".
In the post's video, Hart, who is seen lying shirtless in bed, says: "I swear man, our world is becoming beyond insane and I'm not going to let the craziness frustrate me or anger me especially when I've worked hard to get to the mental space that I am at now".
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"I chose to pass on the apology", Hart said. Much love & appreciation to the Academy.
GLAAD has also sprung into action, contacting the Academy, Hart's management, and ABC to "discuss his rhetoric and record as well as opportunities for positive LGBTQ inclusion on the Oscars stage", according to the organization's chief communications officer Rich Ferraro, THR reports. I'm talking about the tweets from 2009 and 2010, " the 39-year-old said in the Instagram video before stepping down. I hope we can meet again, ' Hart tweeted. "I've done it. I'm not going to continue to go back and tap into the days of old when I've moved on and I'm in a completely different place in my life". The reason why I passed is because I've addressed this several times.
"I am blown away simply because this has been a goal on my list for a long time", Hart wrote on his Instagram page.
"The same energy that went into finding those old tweets could be the same energy you put into finding [my] response to the questions that have been asked years after years after years", Hart said.
"I've moved on", he said.
The tweets highlighted by Lee have all now been deleted by Hart, but a quick Twitter search confirms that there's a lot more where they came from that have yet to be deleted. I'm in a great place, a great mature place where all I do is spread positivity. 'Like I tweeted a few weeks ago, Hollywood still has a real problem with gay men.
In his later Instagram message, he complained that he had already addressed the tweets in the past and that "we feed into internet trolls and we reward them".
But would he still be busy loving his kids if one of them came out as gay?