Reality TV star Scott Disick shared the most adorable video of his kids jamming to the beat of Demi Lovato’s song “Cool for the Summer.” Mason and Penelope Disick, who are 5 and 3 years old, respectively, could be seen headbanging to the track inside their dad’s car in an Instagram video posted by Disick Sunday night.

“Best thing ever,” said Scott in the caption that he wrote for the video. In the post, Mason can be seen sitting in the driver’s seat of his dad’s Mercedes-Benz. He is playing around with the steering wheel while rocking out. On the passenger’s seat, Penelope is enjoying the beat as well. Both kids start dancing as their dad shoots the short clip.

There was no sign of Disick’s youngest child, Reign. He was born only eight months ago and is Disick’s third child with ex-girlfriend Kourtney Kardashian. The pair were together for almost a decade before they called it quits in early June.

On Friday, Disick was spotted taking his two older kids out for pizza. He has been spotted regularly with his children even after his breakup with their mother. On one occasion, he and Kardashian were seen treating the kids to lunch at the Beverly Hills Hotel.

Over the weekend, while Disick was seen spending quality time with his kids, Kardashian took the opportunity to join the rest of the Kardashian-Jenner clan in celebrating Kylie Jenner’s 18th birthday Sunday. The youngest Jenner's parents and siblings posted several photos throughout the weekend documenting a string of festivities.

E! News reported that the family had dinner Friday at Nobu restaurant in Malibu. The festivities continued throughout the weekend and culminated on Sunday with a night out at Bootsy Bellows nightclub.