Lando Norris chose the number 4 because it fit his logo,he was the youngest ever karting world champion when he was 14, he once DJ'd at a party after the 2022 Singapore Grand Prix, and he is a talented musician who plays the guitar, piano, and drums. 

• He chose number 4 to match his logo: When he joined Formula 1, numbers 11 and 31 were taken. He picked 4 because it fit nicely into his logo and he felt it suited him.
• He was the youngest ever karting world champion: At age 14, Norris became the youngest ever world champion in the CIK-FIA KF4 class after switching his focus from motorcycle racing to four-wheel racing.
• He is a DJ: While not actively pursuing it as a career, Norris has shown a surprising talent for DJing and even performed at a party after the 2022 Singapore Grand Prix.
• He is also a musician: Beyond his DJ skills, Norris plays the guitar, piano, and drums. He even took lessons from Josh Devine, the former drummer of One Direction.