There's one person who isn't wishing newly engaged couple Usher and Tameka Foster well: Usher's mom.

Sources tell us that Jonetta Patton is "flipping out" about the impending nuptials, as she isn't thrilled with the candidate for daughter-in-law.

Momma Usher once fired Foster as her son's stylist because "she didn't think she was dressing him according to the caliber of star he was."

Patton also suspected Foster was angling to replace her as the star's manager.

Last month, we caught up with the cozy couple at an event at Core Club, where Tameka assured us, "I'm just his friend, just his very best friend."

She added, "You can't go anywhere these days without being made into a girlfriend or engaged or something."

Usher's rep did not return calls.

Labels: Usher