[5][non-primary source needed] Between 2006 and 2008 he studied at an art school, majoring in playing the guitar, which he was not able to finish.

[8] At the age of 17, he was awarded a gold medal for solo acting by the London Academy of Music and Dramatic Arts.

[9] While studying, he was involved in many fashion shows and photoshoots for major brands, including Diesel, Replay or Prada.

[11] After his modelling experience he made a living by busking in large European cities, such as Prague, Oslo, Zurich, Hamburg, and Vienna.

[12][13] During this period, he was also cleaning a recording studio during the week – so that he could produce his own music there once a month whenever it was empty.

[26][27] In May 2020, "Lie to Me" reached 30 million streams on Spotify, becoming the most-streamed Czech song on the platform.

[28] In April 2018, in Munich, Josef signed an international deal with Sony Music and RCA Records.