text: On 11 June 2009, Hauser launched his channel on YouTube, which had since reached over 970 million views by June 2024. In January 2011, Hauser, along with friend and fellow cellist Luka Šulić, performed a cover of Michael Jackson's "Smooth Criminal" which was played solely on cello. In just a few days, the music video became a YouTube sensation.
  The album Hauser Classic was released on 7 February 2020, in which he plays alongside the London Symphony Orchestra. The album was produced by Nick Patrick.
  During the COVID-19 quarantine, unable to tour in support of his solo album, Hauser released three performances via live streaming. The first, Hauser: Alone Together, released on 27 April 2020 was performed at the Arena Pula, in Stjepan's hometown of Pula, Croatia, on the Istrian peninsula. The second, also titled Hauser: Alone Together, was performed at Krka National Park, at the Krka Waterfalls in central Croatia. The second video was released on 15 June 2020, to celebrate the artist's 34th birthday. The third, again titled Hauser: Alone Together, was recorded at Fort Lovrijenac in Dubrovnik, Croatia, recognisable to many fans from the HBO series, Game of Thrones. A special 2 disc edition of Hauser Classic is scheduled for October 2020 release. It includes a DVD of the three Hauser: Alone Together videos.