The actress cheered on her son Knox at a Muay Thai competition - shortly before his 17th birthday, he even won the gold medal ...

Knox Jolie-Pitt celebrated his 17th birthday with a Muay Thai win, supported by Angelina Jolie, while Brad Pitt remained ...

Angelina Jolie was by her son's side as he rang in his 17th birthday by winning his Muay Thai competition.

The “Maleficent” star supported her and Brad Pitt’s son as he won the IKF Point Muay Thai Technical event on Friday.

Angelina Jolie and Brad Pitt's strapping teenage son looked so much like his famous dad as he learned how to drive with mom ...

Pitt, at his Muay Thai competition. Knox won the competition on his 17th birthday. Brad Pitt was absent from the celebration.

Brad Pitt and Angelina Jolie's son Knox's 17th birthday kicked butt -- literally -- because he spent his big day winning a martial arts competition.