Kelly Osbourne wants everyone to lay off Mama Gosselin for doing "Dancing with the Stars" -- but don't peg her Team Kate just yet.

Osbourne and Gosselin
Kelly, who took third place on the show last season, tells Us Magazine, "She has eight kids to feed, remember that, and if she is going to take a job, why not do one that is fun ... People really need to give her a break."

Osbourne's loyalty still lies with former partner Louis Van Amstel though -- she's gunning for a Niecy Nash win.