Usher and Tameka Foster

Usher's wife is recovering from cardiac arrest, which she suffered just before undergoing plastic surgery last week.

Tameka Foster entered a hospital in Sao Paolo, Brazil, last Friday for a liposuction procedure. She suffered a cardiac arrest while getting anesthetized for the surgery, "but was revived in less than a minute by heart massage," Ellen Dastry, a spokeswoman for plastic surgeon Silvio Sterman, told the Associated Press. Foster was then induced into a coma and taken to the intensive-care unit — protocol Dastry said is "absolutely normal" and meant to "avoid unnecessary complications."

Later the same day, Foster was moved to a reportedly better-equipped hospital in Sao Paolo, where she is recovering. No further details have been disclosed.

Usher had been scheduled to perform at Clive Davis' pre-Grammy party on Saturday, but canceled to be with his wife in Brazil. The couple married in 2007, and have two young sons, Usher Raymond V and Naveid Ely Raymond.