They are academic whizzes who graduated two years ago from Yale University, one of America's prestigious Ivy League universities.
Yet, Sam Tsui and his childhood friend and music partner Kurt Schneider ditched their degrees in classical Greek and mathematics respectively to pursue their love for music.
The duo, both 24, found fame on YouTube in 2010 when they collaborated with fellow US YouTube singer Christina Grimmie on the song Just A Dream, which has garnered more than 68 million views.
By February 2012, their YouTube channel "KurtHugoSchneider" garnered over 525 million views and more than three million subscribers.
The Internet celebrities have been pals since they were 11 years old and first worked together after recording their "terrible first song" in 2006.
Speaking to LOUD while travelling from Dallas, Texas, to Nashville, Tennesse, to meet Schneider, Tsui said: "I wouldn't call us smart, both me and Kurt were just very fortunate to get into the university."
He continued: "I've always known that I wanted to do music or get into entertainment, but I just wasn't sure in what form."
Tsui admitted that his education was always a priority for his Hong Kong-born father, adding: "(My parents have) known from pretty early on that I loved the arts and despite the fact that my dad can be a bit of a typical Asian dad, he did marry my (American) mum, who was a high school music teacher.