Pop punk Pink and her new husband Carey Hart were so serious about getting married they made vows to stop smoking and give-up organs for their partners.

Guests at the low-key Costa Rica ceremony last Saturday (07JAN06) were stunned when chain-smoking Pink, real name ALECIA MOORE, revealed she would try to cut down on her dirty habit in 2006, for her new man, as part of her vows.

And then motocross champion Hart also got serious, when he offered to hand over his kidney if his new bride needed it.

At the makeshift waterfront beach altar, Pink told Hart, "I love you for the person that you make me, which is an open, trusting, passionate woman that wants to exercise more and smoke less cigarettes."

And Hart stated, "If you ever need a kidney, I will give you mine if I haven't broken it yet."

Romantic Hart then promised to "chase" his wife around the world and "sing karaoke" with her, promising he'd be "the best husband from this day forward".