Ryan Tedder of OneRepublic has revealed Adele is sounding "even better than before" as the pair work together on her upcoming third album.

Tedder, who has worked with the Brit songstress previously on her hits Rumour Has It and Turning Tables, even called the singer his "favourite artist in the world."

Although sworn to secrecy regarding the details of the new LP, Ryan told the Herald Sun: "Adele sounds even better than before."

He continued: "I love where she's at, she's still my favourite artist in the world.

"I would press pause on my entire life if it meant I could go into the studio for a month straight with her."

The 34-year-old - who co-wrote Beyoncé's smash hit Halo - has also been working on Bey's new album, which he describes as "mind-blowing."