Matthew McConaughey speaks at a ceremony honouring Guy Fieri with a star at the Hollywood Walk of Fame on Wednesday, May 22, 2019, in Los Angeles. Picture: AP

Matthew McConaughey celebrated his 50th birthday by joining Instagram.

The “Lincoln Lawyer” actor marked his 50th birthday on Monday by signing up for an account on the photo-sharing website.

Matthew alerted fans to his new page with a video shared to Twitter, in which he said: “Born November the 4th 1969, got my dad’s name the very same day. But not until I turned 50, today, did I become @officiallymcconaughey. That’s my Instagram handle. See you there.”