(Cover) - EN Star Style - Nadine Coyle has revealed jogging is her secret to staying slim.

The Irish star is best known as one of the members of pop group Girls Aloud, although she has also recently launched herself as a solo artist.

Nadine has an enviably toned body, and admits she does have to work hard to stay so slim, mainly by going jogging near the US home she shares with her American footballer fianc Jason Bell. The star isnt as dedicated as she thinks she should be though.

I go jogging. I threaten to go every day but it rarely happens. We live by the beach and Jason jogs there, she told more! magazine.

Nadine says her body shape changes depending on how hard shes working. The pretty singer doesnt like getting too big for her favourite denim jeans, so tries to be careful with what she eats but shes never been into extreme dieting or exercising.

I dont overdo anything in any way. I work out to keep the weight off and when Im working it comes off, as Im so busy. In a year I do fluctuate, probably around seven pounds. I go one side either way. When I have to lie down to do up my jeans I ease off on eating so much and work out, she added. (C) Cover Media