Britney Spears being sued by old manager

Things just seem to be getting worse for the ever troubled Britney Spears - she's going through a bitter custody battle with ex Kevin Federline - and now, the 'Gimme More' singer is being sued by her former manager Johnny Wright - who claims Britney owes him in excess of $15,000 in back commission.

The lawsuit against Britney was filed in Florida on Monday was obtained by gossip website TMZ.com; and reportedly states that Britney Spears was obligated to continue paying Wright Entertainment Group for deals negotiated when Wright was her manager through 2008.

According to the suit, Britney stopped paying commissions to Wright in 2006.

Wright Entertainment Group, which managed Spears from 1999-2003, is seeking in excess of $15,000 in damages.