Usher and Tameka Foster

Usher has filed for divorce from his wife of nearly two years, Tameka Foster Raymond.

The R&B singer filed divorce papers Friday in Atlanta, People reports. The couple has been "leading separate lives for months," the magazine says.

Usher, 30, and Foster Raymond, 38, wed in August 2007 and have two sons together, Usher Raymond V, 18 months, and Naviyd, 6 months. Foster Raymond has three sons from a previous marriage.