She takes a yoga class in West Hollywood. PEOPLE

Rather than taking her regular ride home, fitness buff Madonna extends her workout
with a bike ride following a session at her London gym on Tuesday. Now isn't that a
constructive idea?

The pregnant Nicole Richie drinks Jamba Juice for a healthy energy
boost.

 The Hills stars Lauren Conrad and Lauren 'Lo' Bosworth get fittogether during a Friday morning jog through Los Angeles's Runyon Canyon.