The 31-year-old singer co-wrote the song 'All I Ask' on the pop superstar's latest LP '25' and said the 'Hello' hitmaker had an ''attitude'' and didn't hold back in speaking her mind if she didn't like something.
Of their time in the studio, he said: ''She walks into the studio 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...'''
However, as soon as they had warmed to one and other they soon came up with the genius song.
Speaking on New York radio station KTU 103.5 FM, Bruno added: ''And then as soon as we uh hit a couple chords that she liked, we started rolling, and that's where we got that song from.''
The '24K Magic' hitmaker described one mind-blowing moment when Adele, 28, was recording vocals and compared it to the vibration dinosaurs caused in the movie 'Jurassic Park'.
While praising the ''superstar'', he said:'' There was a moment when she was singing in the booth and 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.''
And despite Adele's ''diva attitude'' Bruno is desperate to work with her again.
He said: ''I don't know what she's waiting on man, I'm like come on Adele. like send an email, let me know!''
However, the R&B star will have a while to wait to get into the studio with the pop beauty as it was previously announced the singer would be taking a break from touring in order to spend more time with her family.
A source said: ''Angelo is the number one priority for Adele. He is the most important thing in her life. She has brought him everywhere with her on tour but as he is starting school next year, he won't be able to join her any more.
''Adele doesn't want to miss a moment of Angelo growing up and it's an easy decision for her to give up touring for him. Right now she is saying she won't do another massive world tour like the current one for another 10 years.''
With the Jonas Brothers, Westlife and Backstreet Boys getting back together recently, we should hardly be surprised that New Kids on the Block are...
Our all-time favourite Prodigy songs from their entire back catalogue.
In memory of Keith Flint, we look over at some of his iconic moments caught on camera.
If there was ever a reason for you to try something fresh and new then Poppy Ackroyd is surely it.
The New Zealand musician is a big fan of the Emerald Isle.
An exclusive interview with ambient folk artist Runah.
Are they in love or just incredible actors?
Pablo Honey was released on this day (February 22) in 1993.
After the snappy, clever 2011 original, this sequel feels rather lazy by comparison: it's still...
Blu and Jewel's babies are growing up fast and developing an eagerness to learn about...