Usher Sued by Former Nanny(Part-time worker claims she's owed six figures for childcare.)

USHER is facing more legal troubles over the care of his children, and this time it's not his ex-wife, Tameka Foster, causing the problems.

The R&B star is being sued by a former nanny who claims he owes her six figures in unpaid salary. Cecilia Duncan, who worked for the multi-platinum star in 2010, claims in the suit that she worked around the clock caring for Usher's two sons and asked repeatedly for overtime pay. She says Ush habitually ignored her requests and then fired her in September with no overtime pay.