DESTINY'S CHILD BEYONCE KNOWLES perfected her singing thanks to JOHN LENNON's IMAGINE and a karaoke machine her father bought her.

The singer's manager dad MATTHEW KNOWLES knew what he was doing when he bought his nine-year-old daughter the sing-along machine - because it helped turn her into a pop star.

Beyonce reveals, "You could speed your voice up or slow it down.

"I would sit down by that machine for hours, singing Imagine and recording my voice so I could do crazy things to it."