Katy Perry chews birth control pills.
The 'Thinking Of You' singer is so scared of having a baby she constantly consumes contraceptives to avoid any possibility of pregnancy.
She said: "I love being in love, I love the idea of marriage and making babies - but not yet. Not until I'm 30. I basically chew my birth control tablets - I chew them like vitamin C, I'm like, 'nomnomnomnom.' "
The 24-year-old star – who split from Gym Class Heroes star Travis McCoy last year – is too focused on her career to even consider the possibility of starting a family.
She said in an interview with Paper Magazine: "It's one of those things where I have no energy left to give to anybody. It doesn't matter if I love them or not. I give it all away on tour and when I'm meeting people.
"This is a really important time in my life. During the next two or three years, if I do things right, I will have a real career, and if I don't, well, I'll just be that girl who kissed a girl."
Katy is pleased with her success – her single 'I Kissed a Girl' was at the top of the US charts for seven consecutive weeks – but is worried her "15 minutes of fame" could soon be over.
She added: "There are about five hundred other girls who are trying to and dying to be in my position - I can't take anything for granted. It's all about work - it has to be. I learnt everything from reading the Madonna autobiography."