Singer Toni Braxton's sister Trina has filed for divorce from her husband on the grounds of infidelity.

Trina Braxton branded her marriage to Gabriel Adrian-Solis irretrievably broken in legal papers recently lodged in a Georgia court.

The couple split in March, five months shy of its 10th wedding anniversary.

The pair's marital troubles were well documented on reality TV show Braxton Family Values, which featured Adrian-Solis coming clean about his infidelity with numerous women in the past, while Braxton also confessed to cheating on her husband, reports TMZ.com.

R&B star Toni Braxton has to rely on lucrative tour dates in Europe to boost her bank balance, because her family's reality TV show is not profitable enough for her to live on.

The Un-break My Heart hit-maker was forced to file for bankruptcy last year amid reports she owed between $10 million and $50 million in unpaid debts after cancelling a series of Las Vegas shows due to heart problems.

She recently assured fans her financial woes were not as bad as had been reported and claimed she just had an outstanding tax debt with U.S. authorities amounting to $500,000.

However the star, wh...