K-Fed to join ‘Celebrity Fit Club’

K-Fed is k-fat. It’s no secret.

But rather than attempting to maintain a little privacy, Brittney’s baby daddy will join the new cast of VH1’s “Celebrity Fit Club.” People.com reported that Shar Jackson, Federline’s ex-girlfriend and mother of two of his kids, will also try to slim down on the show.

So which is more awkward? Watching Z-list celebs exercise, or witnessing a Shar/K-Fed reunion? I guess we’ll see.