Antoine Gabriel Michel Haydamous Josefsson (born Stockholm, Sweden August 17, 1989), better known by his stage name AN21 (pronounced "Antoine"), is a Swedish DJ and record producer. He is the younger brother of Steve Angello, producer and former member of Swedish House Mafia. In the survey conducted in 2011 by the magazine DJ Mag, he was ranked at number 85. In 2012, he was ranked at number 61. Josefsson has collaborated on numerous occasions with Max Vangeli and signed on his brother's label, Size Records.