Madonna and Gwyneth Paltrow are rumoured to use Callanetics - and

Followers claim that the lifting and tightening effect of one hour of the U.S. fitness fad is equal to 20 hours of aerobics.

In Praise of Chaotic Workout Attire

Madonna's MANY feuds exposed - including spats with Gwyneth, Cher

Callanetics: quickest results if all, The best training for your body -ever

Why Do Madonna And Gwyneth Paltrow No Longer Get Along?

In Praise of Chaotic Workout Attire

From Madonna to Gwyneth Paltrow: The LA work-outs that will fast

Madonna and Gwyneth Paltrow are rumoured to use Callanetics

From Madonna to Gwyneth Paltrow: The LA work-outs that will fast

Madonna's MANY feuds exposed - including spats with Gwyneth, Cher, Elton, and even Kevin Costner