Whitney HoustonWhitney HoustonWe've all heard rumours that it hasn't been marital bliss in the Houston-Brown household for some time.

And it looks like things have finally come to a head.

Whitney Houston has reportedly filed for divorce from her husband Bobby Brown.

The couple have been married since 1992 and have a 13-year-old daughter, Bobbi Kristina.

Whitney's publicist refused to give a reason for her client's action, however news of the split follows rumours Bobby has been spending a great deal of time with hip-hop star Karrine 'Supahead' Steffans.

Whitney recently went into rehab after The Sun printed pictures of her bathroom strewn with drug-related items.