Avril Lavigne struggles to find the time to work out.

The singer - who has her own clothing range, Abbey Dawn - says her busy career means she rarely gets to visit the gym but is fortunate because her job allows her to exercise.

She said: "If I didn't work and was at home and had a normal schedule I'd work out all the time, but it's really hard to do that when you travel because you're so tired. My excuse is that I work out on stage, running around all night."

Avril says her schedule is sometimes so busy she has to do her nails on flights.

She told Now magazine: "I did my nails on the plane. When I was flying to New York Fashion Week I was like, 'Oh f**k, I didn't get my nails done.' So I stuck on some Sally Hensen nail stickers during the flight. They're like nail polish and stay on for 10 days without chipping. They're my lifesavers - especially out here on the road because I don't want to sit in the salon getting my nails done."