(Cover) - EN Showbiz - Usher has been accused of sleeping with a friend of his ex-wife Tameka Fraser.

The singer is currently in court embroiled in a bitter custody battle with his former spouse.

And today Tameka's lawyer accused Usher of sleeping with a woman who served as a bridesmaid at their wedding and was later a nanny to their children.

Usher had accused Tameka of bringing nannies in and out of their children's lives which he claimed was detrimental to them.

But then Tameka's lawyer asked Usher if one of the said nannies "left Miami because you were discovered in bed with Maya Fox Davis?"

Usher's attorney very quickly objected to the question and claimed that it was irrelevant to the case at hand.

In Late November Tameka filed court papers asking the Without You singer to lose joint physical custody of their children.

Usher is fighting to retain and increase his parental rights, as he desires to spend more time with his tots. The trial is now in recess and will be back in July. (C) Cover Media