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/ Source: TODAY
By Ree Hines

One week ago, Gwen Stefani suffered a singer's nightmare. "The Voice" coach ruptured her eardrum during a flight, and the injury prevented her from performing.

But not for long!

The incident caused the 47-year-old to bow out of a Las Vegas gig last Thursday, but on Tuesday night, she returned to "The Voice" stage to belt out a Coldplay hit alongside two Team Gwen contenders.

RELATED: Gwen Stefani gets 'tongue-tied' talking marriage to Blake Shelton

Of course, Brennley Brown and Hunter Plake weren't surprised to see the singer join them on stage for "Fix You" — and neither was her boyfriend (and coach competition) Blake Shelton.

After all, the country crooner had assured fans that Stefani would perform on the show.

The Voice - Season 12
Hunter Plake and Gwen Stefani sing side-by-side on Tuesday's episode of "The Voice," just one week after the pop star suffered a ruptured eardrum.Tyler Golden/NBC

"She'll be all right," he told Entertainment Tonight. "She’s tough."

He even offered up an explanation of what led to Stefani's injury.

RELATED: Blake Shelton understands why people are surprised he's with Gwen Stefani

"I think the cabin pressure in her airplane ... she had a head cold and then once they got up to a certain altitude (pop)," he said. "They say not to fly if you have a head cold, but we all do. That's the thing that I guess can happen."

He's just happy "she can hear now" — and sing again.