He grew up in Berlin-Friedrichshagen, in the GDR. The first band that Moritz Friedrich is known to have been in was a group called Sirius. After growing bored of playing the same songs, Moritz left Sirius, taking the band name with him. He based his new pseudonym around the old band name, adding "mo" from his first name to create Sirius.Mo, and later, Siriusmo. Throughout his career, which began with the single "Ne Me Quitte Pas" in 2000, Siriusmo has recorded prolifically. His music has been released with a number of different labels, including Grand Petrol Recordings and Boys Noize Records. The majority of his releases have been done through Monkeytown Records, a record label founded by
Modeselektor with the goal of gently forcing Moritz to work on an album. He also published a large number of remixes; for example,
Gossip,
Digitalism,
Scissor Sisters,
Simian Mobile Disco,
Boys Noize, and
Sido. His debut album
Mosaik was released in February 2011 on Monkeytown Records, and provides a mix of genres at the intersection of
techno,
house, and
hip hop. Siriusmo has worked consistently with the Berlin-based graphical artist Jens Tümmel in the creation of his album art, associated videos, and merchandise. Jens' artistic style can especially be seen on many of Siriusmo's album covers. Six years after the release of the album
Comic, an official video for the track Doppelklick was released by Siriusmo. Niels Rost, a Berlin-based graphic designer, animated the video using
Microsoft Paint, a process which took number of years to complete.
The Berliner published an interview with
Modeselektor on the 27th August 2025 where they state that they are reopening their office in
Kreuzberg after which they will release a new Siriusmo record, the nature of it was not revealed. On the 31st October, the first single from the new album was released called Koko. It samples the purported last words of
Koko, a gorilla who practiced parts of the
American Sign Language. On 29th September 2025,
Quentin Dupieux (
Mr Oizo) announced that Siriusmo will compose the soundtrack of his new movie FULL PHIL. ==Personal life==