Justin Bieber Lookalike Doing Lady Gaga's Paparazzi Is YouTube Sensation

A 12-year-old Justin Bieber lookalike has notched up over 1.5million Youtube views with his cover of Lady Gaga's 'Paparazzi'.

The video of Greyson Michael Chance performing on piano in front of bewildered pupils at his school in Oklahoma was posted on Youtube at the end of April and has swiftly become a sensation.

TV executives have booked the sixth grader in to perform on the The Ellen DeGeneres Show today when his popularity is due to explode.

On his Youtube channel, Chance proclaimed: "Lady Gaga is a freak but she has so much talent and her style of music is what I would like mine to be when I'm older."

He also sang the praises of folk-rock band Augustana, saying: “Augustana is one of the most underated (sic) bands I think ever to step the planet." Who?

You can watch his performance below: