Jacob Collier (born 2 August 1994) is a singer, arranger, composer, producer, and multi-instrumentalist based in London, England. In 2012, his homemade split-screen video covers of popular songs, such as Stevie Wonder's "Don't You Worry 'bout a Thing", began to go viral on YouTube. Since then, he has attracted a worldwide following, accumulating tens of millions of views across multiple social media platforms. Collier's style fuses elements of jazz, a cappella, groove, folk, electronic music, classical music, gospel, soul and improvisation, and often features extreme use of reharmonisation. In 2014, Collier signed to Quincy Jones' management company and began working on his one-man, audio-visual live performance vehicle, designed and built at MIT in Boston. On 1 July 2016, Collier released his debut album, In My Room, which was entirely self-recorded, arranged, performed and produced in his home in London. In February 2017, Collier was awarded two Grammys for his arrangements of "Flintstones" and "You And I", both from the album.