Matthew McConaughey has revealed his daughter Vida to the world.

The 'Sahara' actor posted a picture of three-week-old Vida Alves McConaughey - his second child with wife Camila Alves - on his official website.

He wrote: "Here's a pic of our latest family member Vida Alves McConaughey. Thanks for all your well wishes our way, the future's lookin bright, just keep livin. (sic)" The 40-year-old actor posted an announcement about the birth of his daughter on his website earlier this month and explained the unusual name choice.

He said: "On Sunday, Jan. 3rd at 12:13am, Camila gave birth to a healthy 7lb. 7oz. baby girl named 'Vida Alves McConaughey'... 'Vida' is Portuguese for 'life' and that's what God gave us this morning. (sic)" Matthew's brother Rooster recently revealed his star sibling is extremely "proud" of his newborn daughter.

He said: "He called me and said, 'I made a little baby girl.' He's all proud... he's got it going on now."