Sébastien Agius or just Sébastien or Seva (born 2 March 1983 in Nice, France) is a French singer and songwriter, and winner of the inaugural season of the French X Factor series in 2009.
In 2003, he tried unsuccessfully for the first-ever series of the French singing competition Nouvelle Star. He was touring many years in Gospel pour 100 voix.
Since then, he has had many concerts and taken part in musicals. In 2007, he created the musical Hé l'artiste! with participation of 25 artists. Sébastien Agius wrote the lyrics and the music and designed the choreography.
He also played a role in: La Petite Fille aux Allumettes (of Christian Schittenhelm) in the role of Prince; Le petit chose (of Christian Schittenhelm); Piaf, je t'aime in the role of Petit Louis (small Louis); La Petite Sirène (of Christian Schittenhelm) in the role of Prince; Fashion or L'Enfer d'Eurydice in the role of Orphée; Petits Secrets Entre Voisins, 2014, episode "Une mère absente", playing Marco, the guitar player brother; Plus belle la vie, 2016 (season 13).
Sébastien Agius tried for the new series X Factor in Rennes and was one of the finalists chosen. On 28 December 2009, he won the first ever French edition of The X Factor broadcast on W9 Network in France beating the 17-year-old Marie in the finals.
During the series, he interpreted the following songs: "L'envie d'aimer" – Les Dix Commandements – 11 November 2009; "L'assasymphonie" – Mozart, l'opéra rock – 18 November 2009; "Somewhere Only We Know"…