Former Iron Maiden singer Paul Di'Anno has slated the sound of the band's self-titled debut album, branding it "fucking awful."

But he still looks back warmly at the 1980 release and its follow-up Killers, which he recorded before leaving the band in 1981.

Di'Anno is currently touring Europe with Greek pick-up band Sorrowful Angels, and he's working on an album with German outfit Architect To Chaos. 

He tells Rock Overdose: "Iron Maiden was always a heavy metal band with a punk kid – that was me – but the sound of the first album was fucking awful.

"There were some of the best songs on the first album, and on the second one. Somebody should re-mix that. It would sound fantastic with a really good sound behind it."

The vocalist last year announced he was "pulling the plug" on his career – but later said he only meant he was going to stop playing Maiden tracks live. Now he adds: "I'm going to get my knee fixed up at some point – it's absolute agony every day, but it's okay because the crowd don't want to fucking see me, they want to hear the voice.

"Once the album is out we'd be happy to come out on the road and tour around the world again."

Maiden are the cover stars of the latest edition of Metal Hammer, on sale now. They headline Sonisphere on the weekend of June 4-6.