Here is heavyweight-boxing champion Mike Tyson showing off his softer side, by kissing the bird of peace to promote veganism. The ex-fighter, former drug addict and father of eight says he has abstained from animal products for the last two years. The tattoo-faced hard man has even faced a billboard campaign in Hollywood, California where he's shown kissing a dove with the slogan "Vegan" and "Love Animals Don't Eat Them" for the charity, Last Chance For Animals. Tyson, 44, also raved about the health benefits of the dietary choice to US TV host Ellen DeGeneres last month. "I don't have arthritis like I did before, I had a lot of fights inside and outside the ring so I had bad arthritis pains it was hard to make fists and I had back pain and my disks in my back were deteriorating and I'm pretty much fine now" he said on the show which aired on Friday May 27, 2011. Tyson was photographed by celebrity photographer Christopher Ameruoso for the non-profit organisation. Pictured: Mike Tyson