Bo Stefan Alexander Olsdal (born 31 March 1974) is a Swedish-Luxembourgish musician, best known as the bassist/guitarist of the alternative rock band Placebo, he is also part of the electronic band Digital 21 + Stefan Olsdal and launched the electronic/dance remix at Hotel Persona.
Olsdal was born in Gothenburg, Sweden. His family moved to Luxembourg when he was young and went to the American International School of Luxembourg along with fellow band member Brian Molko (though the two did not cross paths at this time). Olsdal began playing music in his school's orchestra in 1987. He completed his high school education in Sweden and moved to London in 1993, where he attended the Musicians Institute.
He is openly gay. He came out publicly in an interview in Melody Maker in 1996. Olsdal and his partner David Amen have a son.
In 2013, he mixed the EP "El Encanto" of Lantana and produced two of the songs of the album, also playing some of the synthesisers, bass and guitars. He also did a lot of the programming for the album.
In 2016 Olsdal produced 'La Chica Con Los Ojos Dorados', and the Fangoria album "Canciones Para Robots Romanticos" as well as the release of the debut album "Inside" from his band Digital 21 + Stefan Olsdal.
He has worked as producer, arranger, musician and mixer on an LP by Lantana.
In 2018, Olsdal revealed on his official Facebook page that he had applied to become a British citizen.
Olsdal met Molko by chance outside South Kensington tube station in 1994. The two of them formed Ashtray Heart, a lo-fi duo, playing mostly on toy instruments. They wrote four songs, but decided to try out as a serious band, so they invited Steve Hewitt who could not be in the band because he was already signed to another record company. After that, Olsdal invited old schoolmate Robert Schultzberg (who was at the time studying in UK) to join as Placebo's drummer (Hewitt would later replace him as the full-time drummer).
Together with Molko, he is credited as co-author on every Placebo song to date (except "Ashtray Heart" from Battle for the Sun) and co-produced Black Market Music and some b-sides.
Hotel Persona began when Olsdal and David Amen started providing dance tunes to friends' house parties; Javier Solo was recruited to sing Spanish vocals, and Olsdal sang the English versions. As the music was coming together, Olsdal and Amen did DJ work under the Hotel Persona name in such locations as Milan, Paris, London, Barcelona and Rio. They have also remixed songs by various bands, including Queens of the Stone Age, Placebo and She Wants Revenge.
Their debut album In the Clouds was recorded and mixed in London, Madrid and New York over two years and features a wide array of additional vocals from various artists including Brian Molko, Samantha Fox, Miguel Bosé and Alaska of Fangoria.
In 2007, they remixed the song "Siempre" for Lantana.
In 2012, Stefan Olsdal created with the Spanish electro music veteran Digital 21 (Miguel Lopez Mora) Digital 21 + Stefan Olsdal.
Being two huge fans of electro and classical music, they decided to mix these two kinds of music. So, they incorporate a string quartet (and other more usual instruments) in their electro creations and during their concerts, creating an experimental aspect to their collaboration.
Together, they firstly created an EP, Rebellion EP. Then, they released 2 albums, Inside (2017) and Complex (2021), the last one having been a victim of many deferments because of the COVID-19 pandemic. In these two albums, they highlighted feminine voices as Margret Rang (Vök), Helen Feng (Nova Heart), Cuushe, Julienne Dessagne (Fantastic Twins), Caroline Devine, Katrína Mogensen, Soleil and Alissa Janine Wollman.
During their several years of collaboration, the band created many instrumental compositions taking away from their usual compositions. In 2020, they decided to create a different project called Made For Humans. Their wish was to create songs having their own identity to permit people who listen to them to get away. According to them, "music allows us to travel". They released their first album and a first EP the same year. A second album, Made For Humans II, was released on 17 November 2023.
2017: Inside by Digital 21 + Stefan Olsdal: producer
2016: Sinestesia (bonus track) from the album Canciones Para Robots Románticos by Fangoria: producer