Matthieu Chedid (born 21 December 1971) is a French multi-instrumentalist and singer-songwriter.

Chedid began his career as a session musician playing both acoustic and electric guitar. In the late 1990s, he rose to fame as a singer-songwriter and musician under the alias M (often stylized as -M-), blending Nouvelle Chanson, electronic and rock music. In studio, he experiments with various instruments and electronic music, while on tour as -M- he mostly plays the guitar, and is known for his eccentric outfits and dramatic live performances, sometimes including special effects.

Chedid has also performed in the 2005 stage musical Le soldat rose and is part of French-Malian band Lamomali. Since 2018, he has been the most awarded artist at the Victoires de la Musique Awards with 13 awards, tied with Alain Bashung.

Matthieu Chedid was born in Boulogne-Billancourt, Hauts-de-Seine, France. His father Louis Chedid is a singer from a family of Lebanese extraction, of Maronite and Greek Orthodox Christian background. Louis Chedid's mother Andrée (née Saab) was an Egyptian-born French writer and poet, who has written lyrics for Matthieu Chedid's songs. Matthieu Chedid's sisters are the music video and concert director Émilie Chedid (born in 1970) and French singer Anna Chedid (born in 1987), also known by her stage name Nach. His brother Joseph "Selim" Chedid (born in 1986) is also a French singer and a guitar and drums player.

Chedid took an interest in music early on. In 1978, at the age of six, Chedid lent his voice to the chorus of his father's hit song T'as beau pas être beau alongside older sister, Émilie. During his teenage years and early twenties, Chedid was part of short-lasting groups such as Tam Tam , Les Bébés fous and Les Poissons Rouges with Mathieu Boogaerts, as well as Julien Voulzy and Pierre Souchon (respectively the sons of singers Laurent Voulzy and Alain Souchon) who went on to form the duo Les Cherche Midi.

He has collaborated with a number of artists, both on stage and in the recording studio. Early into his solo career, Chedid was the opening act for Texas concerts. He has recorded with NTM, Sinclair, Billy Ze Kick, Brigitte Fontaine, Sean Lennon, Vanessa Paradis, and Johnny Hallyday.

Until 2008, Chedid was in a relationship with French actress Audrey Tautou.^{[1][additional citation(s) needed]}

Chedid is mostly known for his on-stage persona -M- whose signature hairstyle is reminiscent of the letter M and was initially achieved using hair wax.^[2][7] According to Chedid, the hairstyle was inspired by the ear tufts of certain species of owls, from a lithography of an owl given by his grandmother Andrée.^[8] The letter M also appears as a pattern in the character's clothes, in music videos and stage sets. With his energetic personality, eccentric outfits and hairstyle, the character has drawn comparisons with English musician David Bowie's stage persona Ziggy Stardust.^[9][10][11] Besides Matthieu Chedid, the character -M- has also been portrayed by actor Vincent Lindon in the music video for Chedid's song La bonne étoile.^[12] In promotional material and music videos for his 2009 album Mister Mystère, Chedid is seen with natural hair instead of the signature M-shaped hairstyle.^[13] The lyrics of some of the songs, and the music video of Le Roi des Ombres ending with Chedid burning a tiny effigy of the -M- character, led to speculation about whether he would abandon his alter ego.^[2][3] Chedid eventually kept performing the character, showing his natural hair or wearing M-shaped wigs or helmets.^[14]

Matthieu Chedid holds the gold place in number of Victoires de la Musique awards, with 13 awards^[15]

• Les Âmes de Mogador (2003), with Patrice Renson : tribute to Essaouira (Maroc). A CD of ten unreleased tracks is included.
• -M-, qui de nous deux (2004), with Claude Gassian : book produced during the recording of the album Qui de nous deux
• -M- de A à Z (2005), by Mathias Goudeau
• Le monde de -M- (2005), with Marianne Chedid, Sonia Rachline and Sophie Laurent : insight on his career, with a lot of pictures
• -M- le mot dit : esthétique d'un funkistador by Marc Borbon: analysis of M's world through a fan's own experience
• Le Livre Extraordinaire de -M- by Lisa Roze: package of an archival photographs, unpublished shootings, a book, postcards, a pop-up, a new song (Si Si No No), etc.