LAS VEGAS, NV - JUNE 28: Singer Gwen Stefani (L) and recording artist Blake Shelton attend the grand opening of her "Gwen Stefani - Just a Girl" residency at Planet Hollywood Resort & Casino on June 28, 2018 in Las Vegas, Nevada.
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Blake Shelton Says Gwen Stefani is Competitive on 'Barmageddon': 'Flipping Me Off'

'Barmegeddon' brings out Gwen Stefani's competitive side.

Although he vied against her for team members on The Voice, Blake Shelton had never thought of Gwen Stefani as competitive. That perception changed after Stefani appeared as a celebrity guest on Barmageddon, a USA Network game show co-hosted by Shelton and family friend Carson Daly.

"She's more of the supportive person, so I've never seen her as super competitive ... until she plays against me on Barmageddon!" Shelton said on Jimmy Kimmel Live! "All of a sudden, it's like flipping me off really close to my face. Saying, 'You're going down!' I've never heard her say, 'Let's go!' like Tom Brady. Now she's saying, 'Let's go!'"

Stefani will appear on a Season 2 episode. The season premiere episode airs tonight (Nov. 13) after WWE's Monday Night Raw and pits Michelle Rodriguez against another friend of the Shelton and Stefani clan, Kelly Clarkson.

"If you've ever wondered what Kelly Clarkson is like when she's been drinking a lot, you've got to watch Monday. She is drunk," Shelton told Kimmel. "I don't care if she gets mad at me for saying this. I got what I needed out of her, and she's already been on the show, so we're good now. But I'm talking about her being wasted on Barmageddon."

Shelton and Daly are joined once again by host Nikki Garcia, who was formerly known as WWE's Nikki Bella.

"What we were aiming for was real-life The Hangover," Shelton told People last December. "We wanted to try to capture that in a TV show with people that we know."

"Back in the day, I would say the 28-year-old version of Blake Shelton on Barmageddon [would have been] way different than the 46-year-old version now," he added. "Now I like to watch other people do stupid stuff — not necessarily be the one doing it."

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