Kirstie Alley,  former spokeswoman for Jenny Craig, is back on the fitness bandwagon.  The actress will appear in an A & E reality docu-series showcasing her latest attempt to shed the excess weight that has slowly crept back on over the past three years.

The 58-year-old lost 75 pounds during a two-year intensive diet and exercise program and appeared in a bikini on Oprah in November 2006.   She parted company with Jenny Craig a year later after gaining a significant amount of that weight back.

Another Jenny Craig spokeswoman, Valerie Bertinelli, followed Kirstie’s lead and appeared on Oprah in a bikini in March 2009.  She weighed 123 pounds during the photo shoot and admits she is now at a more realistic 132 pounds.

View more photos of Kirstie and Valerie below.

Photos:  WENN

Filed under: Celebrities, Kirstie Alley, Valerie Bertinelli