📖 Join 2,200+ readers at People Quora Inspiring stories, celeb news, age, career & family life. Follow on Google KSI shocked fans across the world today after he announced his departure from The Sidemen. The YouTube star has been a part of the group for 13 years, and helped rise to fame through game content … Continue reading KSI Leaves Sidemen After 13 Years: Why the YouTube Star Is Taking a New Direction