Blake Shelton on Gwen Stefani's injury: 'She's getting better'

May 2 (UPI) -- Blake Shelton says Gwen Stefani is on the mend after being hospitalized for a ruptured eardrum.

"She's getting better," Shelton told Entertainment Tonight on Monday. He is dating the pop star, his co-coach on The Voice.

"Something like that is just slow, when you pop-blow your eardrum out, I don't even know how that happens. But she says she can hear now," Shelton said.

The country singer said Stefani will be able to appear on Tuesday's episode of The Voice.: "She's tough."

The 47-year-old's injury occurred last week during a flight from Los Angeles to Las Vegas. Stefani was forced to cancel a performance at a fundraiser. Singer Jennifer Hudson took the stage in her place.