Bruno Mars has written songs for many major artists, one being Adele. When the “24 K Magic” singer was set to work with her, he wasn’t sure what to expect. Mars worked with Adele on her single “All I Ask” for Adele’s “25” album. He admits that at first, she came off as just another diva, “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 “Then, as soon as we hit a couple chords that she liked, we started rolling—and that’s where we got that song from.” As expected, she slayed, changing Bruno’s mind in no time! “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? She’s got some pipes on her, and she’s just a superstar,” he said, also admitting he would jump at the chance to perform “All I Ask” with the 28-year-old songbird—but it’s up to her. “I don’t know what she’s waiting on, man. I’m like, ‘Come on, Adele!’ Like, send an email. Let me know!” Hopefully we see that happen soon!