Enrique Iglesias is a new dad - to twins.

The pop star and his longtime girlfriend Anna Kournikova welcomed the babies over the weekend (16-17Dec17), according to multiple sources.

The pregnancy and birth come as a huge surprise to both stars' fans as no one but close friends and family even knew the former tennis ace was expecting.

Sources tell TMZ Anna gave birth to a baby boy and a girl on Saturday (16Dec17) in Miami, Florida, and the newborns' names are Nicholas and Lucy, but this has not been confirmed by the new parents or any of their representatives, who have keep the news from the media for much of 2017.

The couple's privacy was protected by the fact Anna has been out of the public eye for over a year, prompting ongoing questions about the state of the pair's romance.

Enrique and his sportswoman girlfriend have been together since 2001, but they have rarely been spotted out together and keep their romance well away from prying eyes.

There have been ongoing split and marriage stories for years, but neither the singer nor his partner have confirmed any rumor about their private life together.