Bas Bron is perhaps most famous in the Netherlands under the moniker Bastian. As Bastian, he scored a modest national hit in 2001 with the song You've Got My Love, which was accompanied by a music video showing the song's lyrics on shirts worn by dancing women, showing only their upper chest. The song reached #17 in the Dutch Top 40. Later in 2001 the debut album Ready was released, filled with electrofunk and electropop‑influenced music enhanced with Commodore 64 sound effects. Two years later the second album It's All Downhill From Here came out. The title referred to the buildup of the album; the theme of the songs would gradually become darker and heavier. The third album entitled 'IV' in released in 2007 as is the video for the first single 'Sturdy'.

Live, Bastian performs as a band rather than a solo artist, with the band currently consisting of 7 members.

After 2 EPs, Bas Bron released the album The Booty Pop Phantom under the pseudonym Seymour Bits in 2006. The electrofunk album, quoted as reminding of Prince by several critics, was generally well‑received. Bron made up a fake persona of Seymour Bits[8], a 23-year old computer programmer named Seymour Jackson who travelled to Zanzibar and Tanzania to pursue his dream of making electronic music. Though Seymour Bits still performs frequently, no announcements of future releases under this name have been made.

Bas Bron has also released music under the pseudonyms Fatima Yamaha and Gifted. Together with drummer Rimer Veeman he forms the group Comtron. He also appeared on rapper Brainpower's second album Verschil Moet Er Zijn and is producer of De Jeugd van Tegenwoordig, who had international success with their single Watskeburt. Occasionally he performs with the Spaarndammerbuurtkliek as rapper Dubbel B (or Majoor Vlosshart: De Neger des Heils), who also makes their beats.

In 2005, he started the music label Magnetron Music with Kostijn Egberts.

Bastian is also the name of a minor American emo band.