Gwen Stefani and Blake Shelton
Gwen Stefani and Blake Shelton attend the opening of her residency at Planet Hollywood Resort & Casino on June 28, 2018, in Las Vegas. Getty Images/Ethan Miller

The playful banter between Gwen Stefani and Blake Shelton continues. The country singer shared a behind-the-scenes video that shows his girlfriend and the other coaches of “The Voice” talking behind his back, and the “Hollaback Girl” singer called her boyfriend “a diva.”

Shelton has been sharing videos of what he calls his “Life Lessons.” The latest video he shared on Instagram is about talking about people behind their back.

“Well, you know what they say... if you don’t have anything nice to say about someone…” Shelton captioned the post.

“He’s become a diva,” Stefani said, complaining about her boyfriend when he was not around. Shelton walked in on his fellow coaches as they were talking about him.

Shelton told his fans that if they have trouble speaking in front of people they should talk behind their back. The country singer admitted that he has done this for years.

Stefani is back on “The Voice” as a permanent coach, and she gets to take part in some playful banter with her boyfriend on the show. She previously was a guest on “The Tonight Show Starring Jimmy Fallon,” where she said that being back on the popular show feels like “magic.”

Although Stefani and Shelton are dating, they have to compete in order to win on the show. The “Hollaback Girl” singer said that she is not very competitive, but she does get attached when she sees singers with a dream, who she feels she can help. She also promised that she will win the contest and beat all the other coaches, including her boyfriend.

Meanwhile, Shelton launched his new song “Jesus Got a Tight Grip” on YouTube. The official music video was recorded live during a soundstage session.

Stefani took to Instagram to promote her boyfriend’s music. Shelton promised his fans in the teaser that they are not ready for the new song.