02/08/2009 at 01:55 PM EST
's wife Tameka Foster Raymond has suffered serious complications from plastic surgery in Brazil, reports Access Hollywood
On Saturday night, Usher
canceled his performance at the Recording Academy and Clive Davis's pre-Grammy Gala. Davis told party-goers the singer had to bow out due to a "serious injury in the family."
On Sunday, Davis, Sony Music Worldwide's chief creative officer, told PEOPLE. "I talked to his mom. My thoughts are with them, whatever they're facing."
Foster, 37, gave birth
to the couple's second child, Naveid Ely Raymond, in December. The two have an older son, Usher Raymond V, and Foster also has three sons from a previous relationship.
The couple have been married since August 2007
Reps have no comment.
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