Kanye West. Picture: Instagram

American rapper Kanye West has revealed he's eaten bugs to celebrate his dad "beating cancer".

The controversial rap star has taken to his Instagram account to reveal he decided to "overcome" his fear of bugs after learning that his dad was on the road to recovery from prostate cancer.

Kanye - whose post on the photo-sharing website featured a tray of crickets - captioned the image: "overcome fear

My dad and I are going to eat this plate of bugs to celebrate him beating cancer. No more fear (sic)"

Kanye's mother, Donda, died in 2007 following cosmetic surgery complications.

But a source previously claimed that the 41-year-old rap star has recently benefited from the support of his wife Kim Kardashian West, with whom he has kids North, five, Saint, two, and eight-month-old Chicago.

In July, a source explained: "Kanye's dad was diagnosed with cancer and is already receiving treatment.

"He seems to be responding well to the treatment and everyone is hopeful he will be okay."

Although Kanye didn't want to talk about his dad's health worries at the time, he appreciated Kim's supportive influence.

The insider added: "Kanye doesn't really talk about it. You can tell it's something that's very difficult for him.

"When his mom suddenly passed away, Kanye was all alone. Having Kim and the kids around helps in difficult situations."

Kanye previously suggested he blames himself for his mother's death.

Asked what he has sacrificed for his career success, he said: "My mom."

The rap star claimed Donda - who underwent surgery at a Los Angeles-area hospital - would still have been alive if he hadn't decided to relocate.

He explained: "If I had never moved to L.A. she'd be alive. I don't want to go far into it because it will bring me to tears."