Johnny Knoxville, star of the Jackass franchise, felt Capital Breakfast host Chris Stark's prosthetic testicle during a live radio broadcast on June 24, 2026. The incident occurred on Capital Breakfast, where Stark co-hosts alongside Jordan North and Sian Welby.
Background on Chris Stark's Cancer Diagnosis
Chris Stark, 39, publicly revealed in March 2025 that he had been diagnosed with testicular cancer. He underwent chemotherapy and surgery to remove a testicle, later receiving a prosthetic implant. Stark has spoken openly about his diagnosis, aiming to raise awareness and encourage men to check themselves for signs of testicular cancer.
The Live Radio Moment
During the broadcast, Johnny Knoxville, a guest on the show, asked Stark if he could feel his new prosthetic testicle out of curiosity. Jordan North joked, "I said, over a few drinks, would you let me feel it one time?" Stark replied, "Yes, I've said yes. And look, in the interest of the greater good, I'm happy to always have this discussion about..." Knoxville interrupted, "Are you gonna let me feel your nut or not?"
Stark gave his consent, and the pair moved to a corner of the studio, where Knoxville felt the prosthetic implant. Knoxville exclaimed, "Wow it feels just like a regular one!" while North and Welby laughed hysterically.
Stark's Mission to Educate
Following his cancer announcement, Stark told The Mirror he was overwhelmed by the response from fans. He said, "I was amazed by the response... It's something I kind of hid from the radio and from the show – mainly because I didn't want to burden people. That's kind of been my attitude to a lot of things." He added, "The best thing about it... it was more to say 'I've got this thing and if you're hearing this that you might think about going and checking yourself.'"
Stark emphasized that his main motivation was to encourage other men to get checked and look out for signs of testicular cancer. He described himself as "effectively cured" after treatment.



