Son David Hallyday (later a singer in his own right) was born in August 1966; not long after, a deeply depressed Hallyday attempted suicide as his rock-and-roll career began to flounder after the British invasion and the rise of politically motivated folk music. After his recovery, he issued the despairing single "Noir, C'est Noir" as a commentary on his near-tragedy.
Very good friends with Mathilde Seigner.
Uncle of Michael Vartan, by marriage with his ex-wife, Sylvie Vartan.
Shares birthday with soccer player Oliver Kahn, actors Ice Cube and Guy Bedos.
A Legion of Honor medal by French President Jacques Chirac was presented to him in 1997, and the following year he gave spectacular concerts to close the World Cup soccer tournament and commemorate France's first championship.