There is more than one artist with this name, including:
1) Maximilian is Romanian rapper Claudiu Iulian Husaru.
2) Maximilian was American musician and songwriter Max Crook (1936 - 2020).
3) MaXimilian is American DubStep musician Maximilian Robinson from Huntingtown, MD.

1) Maximilian is Romanian rapper Claudiu Iulian Husaru. Rap / Hip Hop from Bacau/Bucuresti, Romania. Volumu'' La Maxim...ilian!!! pe www.maximilian.ro

2) Maximilian was American musician and songwriter Max Crook (born Maxfield Doyle Crook on 2 November 1936; died 1 July 2020). He was a pioneer of electronic music in pop and was the featured soloist on Del Shannon''s 1961 hit "Runaway", which he co-wrote and on which he played his own invention, the Musitron. His own recordings included "The Snake" (a hit in Argentina), and later "The Twistin'' Ghost" and "Greyhound" (both hits in Canada).

3) MaXimilian is American DubStep musician Maximilian Robinson from Huntingtown, MD.