Back in 2009, Shaheen took part in the third series of BGT and wowed Simon Cowell with his rendition of Michael Jackson's 'Who's Lovin' You'.
Shaheen made it through to the final of the ITV1 talent show and eventually finished in 7th place, receiving a standing ovation from the audience.
But bigger things were to come for the school boy.
Just months later, following the sudden death of Michael Jackson, Shaheen was whisked to Los Angeles in the US for the biggest gig of his life.
The teenager, from Swansea, Wales, performed 'Who's Lovin' You' at Michael's memorial service, which took place at the Staples Centre and was televised globally.
Musical greats such as Lionel Ritchie, Mariah Carey and Stevie Wonder also took to the stage and the service was watched by a whopping 2.5 billion viewers worldwide!
Shaheen also performed on both the Oprah Winfrey Show and the Ellen Degeneres Show in America.
Since then, no doubt wanting some normality, 17-year-old Shaheen has been busy focusing on his music - and school work - and is now set to star in Aladdin at the New Victoria Theatre in Woking, Surrey.
We barely recognised him...but he's still a cutie!
Watch Shaheen's 2009 BGT audition here: