Director Bryan Singer has become a first-time father after welcoming a son with his best friend Michelle Clunie.

The 49-year-old X-Men helmer took to Twitter to announce the exciting news, writing, "Michelle Clunie and I would like to welcome our beautiful son Dashiell Julius William Clunie-Singer into the world."

The happy news about the pregnancy was announced in October, with Bryan's rep telling JustJared.com, "Mother and father are both very excited about the upcoming birth and look forward to co-parenting the child together.

"The pair have been planning this baby for years and have been trying for the last two."