Singer Bryan Adams is set to become a first-time father at the age of 51, according to a U.K. report.

The "Summer Of '69" hitmaker has allegedly been in a relationship with his personal assistant, Alicia Grimaldi, and they are expecting a baby together in May, reports Britain's The Sunday Telegraph.

A source tells the publication, "Bryan's personal assistant, Alicia Grimaldi, is expecting his baby in May. Many of their friends still don't even know that they are a couple, but they are living together at his house."

Adams, who has always kept quiet about his personal life, had not commented on the report as WENN went to press.