text: The album Hauser plays Morricone premiered on YouTube on 27 October 2020.
  Collaborations
  Hauser has worked with cellists such as Mstislav Rostropovich, Bernard Greenhouse, Heinrich Schiff, Frans Helmerson, Arto Noras, Il Volo, Ralph Kirshbaum, Valter Despalj, Philippe Muller, Thomas Demenga, Young-Chang Cho, Reinhard Latzko, Karine Georgian, Roel Dieltiens, and Alexander Ivashkin.
  In early 2011, Hauser recorded an album with fellow Croatian Damir Urban. The album, the self-titled Urban and Hauser, was released in the summer of 2011. Also in the spring of 2011, he recorded an album with Croatian pop star Oliver Dragojević. The album, Noć nek' tiho svira, was released in October 2011. Also in 2011, they performed together in Pula. That fall, along with fellow 2CELLOS member Luka Šulić, he began touring as a member of the Elton John band. Since then, he has performed with the band hundreds of times, on tour all around the world, and in Las Vegas, Nevada, in the Million Dollar Piano concert performance at the Coliseum at Caesar's Palace. In November 2011, he released another classical album: Brahms, Beethoven & Bruch for Clarinet, Cello & Piano, again with Ms. Misumi, and clarinettist Leslie Craven.
  In 2018 and 2019, Hauser released a series of videos with Uzbek-American pianist Lola Astanova on social media.