More about: Beyoncé

Beyonce Knowles left a fan speechless when she phoned him on Skype after he won a competition to remix her track 'End Of Time'.

The conversation, which was recorded as part of promotion for the star's current single, shows the singer chatting to the fan online.

"You did a fantastic job," says Beyonce to the remixer, laughing as he sits down in shock at the surprise call. "Thank you so much, i'm very grateful that so many people participated, but you were incredible."

"We were all very impressed, and you're very talented," she added, as she appears visibly charmed by Polish producer Jimek. "I wish you all the success in the world. Stay as humble as you are."

Jimek won from 3,000 entrants to the competition and his remix will appear on Beyonce's upcoming EP, '4: The Remix'.

Watch Beyonce chat with Jimek below.

More about: Beyoncé