On Access Hollywood, former heavyweight champion Mike Tyson discussed his weight loss with Billy Bush, who was left laughing to tears.

Tyson was promoting his reality show, Taking on Tyson, on Animal Planet.

When asked about how he has slimmed down and his new physique, Tyson went into an explanation that had hosts Bush and Kit Hoover in stitches.

I became a vegan. I lost a 140 pounds. I always thought if you did cocaine, you stayed skinny. I didn't know you would turn into a fat crackhead, said Tyson. And you know there's nothing like a fat crackhead.

Tyson has been targeted by PETA for his interest in racing pigeons, but bird enthusiasts defend Tyson for being involved in the activiity.