The Goonies star became a punchline online last month (Sep16) after staging a bizarre performance of his latest song, Go 4 It, on U.S. breakfast show Today, with rapper Doc Ice and three women dressed as angels.

Footage of the show went viral as people poked fun at the TV appearance, for which Corey wore a hooded black ensemble to embrace the "good versus evil, heaven versus hell" theme of his album, Angelic 2 the Core.

Feldman took the criticism badly and, in a now-deleted live stream on Facebook, openly sobbed as he defended the gig and insisted the song "wasn't that weird".

"I've never had such mean things said about me. Like, constantly," he cried.

Now Feldman has opened up about the tough experience, insisting speculation the former child actor was high on drugs or inebriated for the show couldn't be further from the truth.

"There's nothing in this world that would ever make me do cocaine or heroin or any of that stuff ever again," he told People magazine.

He credits his 12-year-old son Zen for helping him stay clean, and reveals he has since managed to move past the online attack because he wants to set a good example for his boy.

"That's where my love is and where my heart is," he says. "There's no time to mope around or to be depressed, because I have to be a positive influence on him. That's what's most important.

"I look at his beautiful smiling face and I say, 'I've got to stay strong for him'. No matter how mean and awful people can be, I can't let that affect me."