Lady GaGa is impressive in the studio, says Madeon

Lady GaGa has been praised for being "really impressive" in the recording studio.

French DJ Madeon told Digital Spy that the singer gave "everything" during their recording sessions for her upcoming album ARTPOP.

Madeon perform at the Sony Xperia Z launch in London.

Madeon launches Sony's Xperia Z smartphone

"She's great. She's a really, really interesting and nice person," Madeon said at the launch of Sony's Xperia Z smartphone in London.

"From a personal standpoint it's been hugely admirational, to be like, 'Wow - you're at this level of super, ultimate fame - and there's this aura of superstardom - and you're still an engaging and nice person'. So that was really humbling."

He added: "Professionally, I think she's amazing. She would come out of a show after singing live for three hours and giving it everything, but just go straight to the studio and record.

"She would still give everything - even on the demo take! She's really impressive."

Lady GaGa and Madeon in the recoding studio.

Lady GaGa and Madeon in the recoding studio.

Madeon explained that collaborating with the star has affected the way he now works on his own debut album, which is due out later this year.

"I learnt a lot because I don't really work with vocalists in real life that often," he said. "For my previous collab! orations I'd never met them while doing the song.

"It was really interesting for me to feel the vibe of working together, sitting at the piano and collaborating on ideas right away.

"I think it's great that my first real experience of that was with Lady GaGa! I did a session with Beth Ditto before, so they were the only two I'd worked with."

Watch the music video for Madeon's 'The City' below: