Kevin Federline rushed to hospital after collapsing while filming weight loss show, reports say

Britney Spears’ ex-husband had a misfire with his battle of the bulge.

Kevin Federline was hospitalized in Australia for “heat stress” while filming “Excess Baggage,” the Oz version of “Celebrity Fit Club.”

Kevin Federline

Kevin Federline

E! News reported that the competition was filming in the Kimberley region of Outback Western Australia in November, which is “widely regarded as one of the most remote and hostile parts of the country,” when Federline was “taken to hospital as he was showing signs of heat stress.”

November is the hottest month of the year in the Outback, with daily temperatures averaging more than 100 degrees.

Happily, the former backup dancer and occasional rapper recovered and resumed filming the series, which is set to debut on the Nine Network in Australia next year.

This isn’t Federline’s first public attempt to lose the pounds he piled on since marrying–and divorcing–America’s favorite pop tart. He lost 30 lbs. during 2010’s “Celebrity Fit Club: Boot Camp” on VH1, falling 55 lbs. short of his goal to lose 85 lbs.

Kevin Federline Britney Spears

Kevin Federline Britney Spears

“Once you get depressed, you don’t really feel like doing anything,” Federline told “Access Hollywood” of his weight gain following his divorce from Spears. “Everybody knows what happened with me and Brit–I’m not going to say that’s the total cause of it but, I mean, just not being happy with myself was probably the main part of my depression.”