Brad Pitt and Son Knox Have an Adorable Day Out at the Racetrack

Brad Pitt and his youngest son, Knox, enjoyed a boys' day out on Sunday. The two were all smiles as they attended the MotoGP British Grand Prix race in Silverstone, England, on Aug. 30. Brad, who held on tightly to Knox's hand as they made their way through the event, was there to promote the release of the documentary Hitting the Apex, a film he narrated. But it definitely wasn't all work and no play for the father of six. Brad and Knox, who covered his ears with large headphones, took time out to bond and watch the race. Knox seemed to be enamored by the speed of the cars, as he was seen frequently looking up at the monitors to see what was going on. At one point, the pair also shared a sweet cuddle on the sidelines.

The outing comes just one week after Brad, who recently debuted his new tattoo that honors his six children, celebrated his one-year wedding anniversary with Angelina Jolie on Aug. 23. Keep reading to see more of the father-son outing, and then check out Brad's sexiest PDA moments with Angelina over the years.