A tall Starbucks coffee was not the only thing Britney Spears got served as she left her court appointed drug test today. The troubled mother of 2 was served legal papers from her former manager. According to TMZ.com, Johnny Wright, Brit’s former manager is suing her over ‘contractual differences’. Wright issued a statement revealing that although he “has a great deal of affection for her” she still owes him commissions on all deals made through February 2008.