Arnold Schwarzenegger sends loving message to son Joseph Baena on his 23rd birthday

This Oct. 26, 2019 photo shows actor Arnold Schwarzenegger posing for a portrait to promote the film, "Terminator: Dark Fate" at the Four Seasons Hotel Los Angeles at Beverly Hills in Los Angeles. (Photo by Willy Sanjuan/Invision/AP)
Arnold Schwarzenegger (Credit: Willy Sanjuan/Invision/AP)

Arnold Schwarzenegger has offered a touching tribute to his son Jospeh Baena on the occasion of his 23rd birthday.

The screen icon took to his Instagram with a mocked up picture of Joseph in a DJ booth.

Read more: Joseph Baena posts childhood photo

“Happy birthday @projoe2! I love watching your progress with your training, your work, and in every part of your life,” he captioned.

“I can't wait to see what’s coming next. I love you!”

Baena is the son the Terminator star had with his former housekeeper, Mildred Baena, who had worked for the Schwarzeneggers for 20 years.

He was born in 1997, while Baena was still working for the family, Schwarzenegger confirming his paternity some years later in 2011.

The affair ended Schwarzenegger's marriage to Maria Shriver, niece of former president John F. Kennedy and senators Robert F. Kennedy and Ted Kennedy.

Schwarzenegger and Baena have had a close relationship every since, with Arnie showing particular interest in Baena's enthusiasm for body building.

LOS ANGELES, CA - JULY 19: Arnold Schwarzenegger seen biking at the Brentwood Country Mart with son Joseph Baena and girlfriend in Los Angeles, California on July 19, 2020. Credit: mpi99/MediaPunch /IPX
Arnold Schwarzenegger seen biking at the Brentwood Country Mart with son Joseph Baena in Los Angeles, California on July 19, 2020 (Credit: mpi99/MediaPunch/IPX)

The pair are also often seen out and about, riding their bikes in Los Angeles.

The True Lies actor also has children Patrick, 26, Christopher, 23, Christina, 28, and 30-year-old Katherine Schwarzenegger Pratt, who married actor Chris Pratt last year.