Katy And Russell In Trouble?

Things may not be going as smoothly as we thought between Katy Perry and hubby Russell Brand.

A source told E! News that the couple have been having "problems" and have been spending "a lot of time apart", with Perry spending Christmas in Hawaii while Brand was reportedly back in his native England.

The source also said things between the couple started getting tense around early December and that K.P. has been "a mess".