Joking, or not?! Gwen Stefani reduced her Voice costar Adam Levine to a flabbergasted silence when she joined in with his Blake Shelton lovefest, declaring she loved the country singer too!

Levine and Stefani were being asked by Entertainment Tonight what they were most thankful for about their fellow coaches. When Levine revealed that he loved all his Voice pals, even Shelton, he wasn't expecting the singer's new girlfriend, Stefani, to get in on the act!

"I love you Blake, kinda, ish, sometimes," Levine, 36, said in a shout-out to his fellow coach.

"I love you too Blake.....ish!" piped up Stefani, 46, leaning in to get her addition on camera and beaming a cheeky grin!

Literally lost for words, Levine stumbled. "Blah....urr...context...!" he mumbled. "You screwed yourself on that one!" he added, evidently totally in shock.

"No I didn't!" replied Stefani, coyly.

Still unable to handle the situation, Levine continued mumbling to himself. "[I can't believe] you’d do something like that!" he added.

"You think that was dumb?" asked Stefani, innocently.

Recovering their composure, the duo then went on to discuss other reasons they were thankful for their great celebrity workmates.

"I'm just so grateful that I got to know Adam," Stefani gushed about the man standing beside her. "It's weird because he's such a good person, he's literally so smart and he's so witty and talented and I've just learned so much."

Overwhelmed for the second time by Stefani's outpouring of emotion, Levine grabbed his costar and hugged it out!

Tell Us: Do you think Gwen was joking?

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