The former X Factor star told PA at V Festival's Virgin Media Louder Lounge that she had completed work on the follow-up to her 2010 debut Songs from the Tainted Cherry Tree.
"It's between Kylie and Madonna, but early days," she said.
"They've been my inspiration. Pop's the way forward, so I'm going to keep it very pop."
Vickers's most recent release was standalone single 'My Wicked Heart'.
She parted ways with record label RCA a year ago and later suggested that an EP of new material could be released before the end of 2011.
Vickers previously said of her new material: "It's pop, but it's different from the last one.
"I've grown up and have a lot more I want to write about. I was influenced by '80s Madonna, it's edgy - it definitely has an attitude."
New songs and demos including 'Colours', 'Low', 'Boy in Paris', 'Kiss of a Bullet' and 'Music to Make the Boys Cry' have been released online or leaked since Vickers's last official single.
Watch the video for Diana Vickers's 'Once' below: