Kevin Federline fitness DVD

Kevin Federline is set to release a fitness DVD.

The former backing dancer - the ex-husband of Britney Spears - is planning to get back into shape after piling on the pounds and wants to cash in on his potentially buff body by sharing his exercise secrets.

He is reported by FOX News as saying: "I plan to get back to looking ripped and sexy again - I know I have let it all go but watch me fly this year."

The 30-year-old is hoping to release the DVD in January 2009. Kevin, who reached a custody agreement over his two sons with Britney earlier this week, recently admitted his weight has ballooned because of the "pressure of looking after my children".

Kevin retained sole legal and physical custody of Sean Preston, two, and 21-month-old Jayden James, while Britney was given visitation rights. If the dancer does release an exercise DVD, he will be following in the footsteps of a host of celebrities who have branched out into the health and fitness industry.

In 2005, US TV talk show host Oprah Winfrey released a DVD and book featuring 10 steps to a better body. She also had a diet - the Oprah Plan - named after her. Supermodel Heidi Klum published a book featuring exercise routines, while Carmen Electra released DVDs showing how to get in shape by performing stripteases and pole dancing.