(Cover) - EN Showbiz - Fergie will not adopt an all-smoothie diet anytime soon.

The 36-year-old Black Eyed Peas singer is in great shape and is regularly praised for her enviably toned figure.

Fergie spends a lot of energy on sculpting her body and gets quite a lot of health tips from her husband Josh Duhamel. The pair often consult a book entitled The Beauty Detox Solution written by author Kimberly Snyder for additional advice.

Although Fergie appreciates Kimberley's professional opinion, drinking liquid all day in replace of hearty meals is not very appealing to the star.

"Josh turned me on to the book. It's about juicing as a way of life," Fergie explained to Shape magazine. "I don't plan to make the switch completely, but I'm adding superfoods to my system with her green smoothie."

Exercise is a necessity for Fergie. She does need a little inspiration to get her moving though and loves to play rock and roll while breaking out a sweat.

"If I had to pick just one song to run to, it would be 'Violet' by Hole," Fergie said. "It makes me want to run."

While running Fergie has to pay special attention to her assets. Her breasts are held in place by extremely strong sports bras.

"I have to wear two sports bras when I do my cardio," Fergie revealed. "It takes a lot to hold these puppies up!" (C) Cover Media