Willis 'overjoyed' at birth of fourth child

Bruce Willis has become a father for the fourth time.

The 57-year-old actor - who has daughters Rumer, 23, Scout, 20, and 18-year-old Tallulah with ex-wife Demi Moore - and spouse Emma Heming Willis are "overjoyed" at the arrival of Mabel Ray Willis, who was born yesterday, his representative has confirmed.