Kelsey Grammer Camille Grammer Custody BattleJust when we thought the couple had been declawed, they're at it again. Kelsey Grammer just filed for sole physical custody of his two young children with ex-wife, Camille Grammer, according to E! Online.

Since the couple's split, which the world got to see on 'The Real Housewives of Beverly Hills,' Kelsey Grammer believes that his children -- Mason, 9 and Jude, 6 -- have been caught in the middle of an emotional tug of war between mom, dad and dad's new wife, Kayte Walsh. Grammer, 56, and Walsh, 29, tied the knot in February after a quickie divorce from wife of 13 years, Camille.