The newlywed singer confessed during an interview at SXSW that he used "many different substances" when he went to the Coachella Music Festival.
"I've been to Coachella many times but not remembered a lot of it, I'll leave it at that," he said.
While he didn't elaborate exactly which "substances" he had been using, it sounds like whatever it was had a pretty powerful effect on the "Suit & Tie" singer.
Granted, he doesn't remember the details, but Justin does remember being seriously strung out. "I saw Weezer and I was standing in the middle of the field, you know, like tripping my mind out,"he dished.
The 32-year-old singer said that this took place back before paparazzi started attending the festival with the hopes of catching stars doing...well, exactly that.
Justin has also confessed that he enjoys smoking pot from time to time, telling Playboy back in 2011 that it allows his active mind to "stop thinking" for awhile and that "some people are just better high."
Are you surprised by Justin's candid drug confessions?
Gallery | Stars at SXSW!