X Factor's Simon Cowell said no one should work 5 days: 'it's just pointless'

• Simon Cowell has given up working on Fridays. 
• The talent show judge admitted he used to be a workaholic and clock in 20-hour days. 
• Studies have shown that the four-day workweek can be beneficial. 

TV personality and multimillionaire Simon Cowell has gotten on board with the four-day workweek hype and given up working on Fridays because "it's just pointless," he said in an interview with British tabloid The Sun.