(Cover) - EN Star Style - Kimberley Walsh refuses to attend fitness classes as she hates anyone seeing her working out.

The 29-year-old is best known as one fifth of successful British group Girls Aloud, along with fellow members Cheryl Cole, Nadine Coyle, Nicola Roberts and Sarah Harding. Despite being feted as one of the sexiest women in pop music, the star reveals she has reservations over exercising in public. However, Kimberley now has some stylish gym attire, so she feels more confident.

I dont do classes as I hate anyone seeing me. But now Ive stocked up on more fashionable stuff to wear, I look a bit more stylish when I work out, she told Closer magazine.

Kimberley says her urge to exercise has been prompted by the self-imposed break Girls Aloud have taken to concentrate on solo pursuits. The star found mastering all the groups tricky dance routines used to really help her maintain her slender frame, and last year she decided to do more exercise to compensate for the bands inactivity.

Not dancing as much with Girls Aloud last year, I noticed my body lose its firmness over the summer, so in September I upped my training regime. That way I knew I could keep eating what I liked, she concluded. (C) Cover Media