Luka Šulić (Croatian pronunciation: [lǔːka ʃǔːlitɕ]; born 25 August 1987) is a Croatian - Slovenian cellist. He is a member of 2Cellos, along with Stjepan Hauser.

Stjepan Hauser (Croatian pronunciation: [stjêpaːn xǎuser]; born 15 June 1986) is a Croatian cellist. He is a member of 2Cellos, along with Luka Šulić.

Šulić, born in Maribor, SR Slovenia (now Slovenia) and Hauser, born in Pula, SR Croatia (now Croatia), both classically trained musicians, met at a master class in Croatia while still in their teens. Šulić—the younger of the two by a year— attended the Academy of Music in Zagreb, and then studied in Vienna. Šulić later entered London's Royal Academy of Music. Hauser attended the Royal Northern College of Music in Manchester, after completing his studies at Trinity College in London.

Stjepan Hauser (Croatian pronunciation: [stjêpaːn xǎuser]; born 15 June 1986) is a Croatian cellist. He is a member of 2Cellos, along with Luka Šulić. Hauser was born in Pula into a musical family, where he began his musical education. He has a sister who is a journalist in Pula. Hauser finished secondary school in Rijeka. He studied in Zagreb, London, and later in theUnited States under Bernard Greenhouse.

The duo rose to fame after their cover of "Smooth Criminal" became a hit on YouTube, receiving over three million views in the first two weeks and over ten million views in all. The creation of the music video was prompted by the cellists' financial difficulties, despite their musical success in the UK. The duo met in Pula, where one of Hauser's friends, a director, proposed that they try the pop music market by creating a video to "Smooth Criminal." The video, originally posted on 20 January 2011, features Šulić and Hauser facing off alone in a large white room, playing Jackson's tune. In fact, before they became partners, the two cellists were sometimes considered rivals, competing against each other in music contests.