Tameka, is in Brazil and has experienced complications from plastic surgery. A neurosurgeon is on the way to South America.
A rep for Usher had no comment at this time. Josh Groban filled in for the R&B star at Davis’ annual event.
Foster, a 37-year-old stylist, recently gave birth to the couple’s second child, Naviyd Ely Raymond. The couple’s first child, Usher Raymond V, was born in November 2007.
The couple announced their engagement in February 2007, marrying on August 3 of that year.