Alexandra Burke has revealed the source of recent leaks which targeted artists including herself and Leona Lewis.

Earlier this year, over 40 songs from the two Syco artists hit the net, reportedly prompting Simon Cowell to call in the FBI to investigate.

"24 songs of mine got leaked recently, actually. We found out it was coming from my label," the 'All Night Long' singer told the Star Observer. "Two little boys in Germany on work experience were leaking all my s**t."

Burke recently confirmed that 'Start Without You', which leaked last week, will be her next UK single.

"It's a shame when music gets put out there when it's not ready, but at the end of the day, it creates buzz and who doesn't love a bit of buzz?" she said.