Whitney Houston has denied reports she's reunited with ex-husband Bobby Brown after the pair was spotted enjoying a romantic dinner together in Georgia.

Houston and Brown sparked reports they had rekindled their romance after photographs surfaced of the pair spending time together on a number of occasions in the state, reports the Chicago Sun Times.

A spokesperson for Houston says the former couple remain separate, "but good friends whose primary interest is the well-being of their daughter".

The stars ended their 15-year marriage in a messy public divorce in April 2007 - with Houston reportedly struggling to overcome her drug addiction and working to make a music comeback.

They have a 15-year-old daughter, named Bobbi Kristina, together.