Ahead of The BRIT Awards 2014 with MasterCard, some of the world's biggest music acts surprised fans as part of MasterCard's #PricelessSurprises campaign.

The #PricelessSurprises featuring pop superstar and multi BRIT award winner Kylie Minogue, Academy Award nominee Pharrell Williams and double BRIT Award nominee Laura Mvula will be premiered on 18th February on www.somethingforthefans.co.uk and will be broadcast as special idents during The BRIT Awards 2014 coverage on ITV on 19th February.

Pop cultural icon Pharrell Williams surprised fan Queen Allen from London, by joining her children's nursery group Theatrebugs at Clockhouse Community Centre in Woolwich for a very special dance-a-long to his No1 track H A P P Y.

Pharrell Williams commented: "Getting to meet Queen was an amazing experience. She does such a wonderful job inspiring the kids she works with, and really does embody the spirit of what my song H A P P Y is about! She truly deserved to have a Priceless Surprise and I'm pleased I got to show her how grateful I am for her support."

Kylie Minogue's super fan Adam Milner from London was treated to the first UK performance of her brand new single 'Into the Blue', whilst at The Factory Gym and Dance Centre in Crouch End. Adam, who usually listens to Kylie on his headphones during his work outs, was surprised by Kylie accompanied by glitter cannons and hunky dancers for a live and unforgettable performance. Kylie's hugely anticipated new album, "Kiss Me Once" is out on March 17th.

Kylie Minogue commented: "Kylie Minogue commented: "I've never performed in a gym before, so it was a crazy and exciting experience for both me and my fan, Adam. When MasterCard told me I would be surprising him at the gym, I knew I absolutely had to have glitter cannons. I loved Adam's reaction when I walked in and even in his shocked state he still managed to sing along to all the words to 'Into the Blue'. It was fabulous for both of us."

At an open-mic night at Café Oto in Dalston, East London, singer and songwriter Laura Mvula stunned fan and enthusiastic singer Sophia Amato from Kent by joining her up on stage to duet to her track 'Green Garden', the second single from her debut studio album 'Sing to the Moon'.

Laura Mvula commented: "My band and I had been listening to Sophia singing from outside the café and she had a beautiful tone to her voice, so I couldn't wait to surprise her. Her reaction was so genuine and I encouraged her to continue singing so I could join in and sing with her. It was honestly a lovely moment and I am so grateful to have such a talented fan."

You can watch the full video's below...