Bruno Mars Calls Adele a 'Diva' in the Best Way

— -- Bruno Mars didn't have a great first impression of Adele when they collaborated on her song "All I Ask."

"She walks into the studio and she's got all this attitude. She's a diva. She's like, 'I don't want to do this. I don't like that,'" Mars, 31, recalled Tuesday in an interview with 103.5's "Cubby & Carolina Bermudez in the Morning."

Fortunately, his initial impression quickly changed.

"As soon as we hit a couple chords that she liked, we started rolling -- and that's where we got that song from," the "24K Magic" singer said.

"She's incredible. There was a moment when she was singing in the booth -- I'm not exaggerating at all -- and the water was vibrating. Like, you know, that scene in Jurassic Park?" he gushed. "She's got some pipes on her, and she's just a superstar."

In fact, Mars would welcome an opportunity to perform the song with Adele, 28.

"I don't know what she's waiting on, man. I'm like, 'Come on, Adele!' Like, send an email. Let me know!" he said.

Meanwhile, Britney Spears has let it be known that she'd love to work with Mars.

"Really? Right on, Britney. Come on, Britney! Come on down to the studio. Let's get it," Mars said on Tuesday's show. "Britney's an icon. I'd love to get in the studio with Britney one day."

That's not all. "I haven't done a song with Beyonce," Mars said, adding that he'd like to work with Rihanna too.

"It's a job fair," he joked.