Washington DC, Dec. 1 -- Simon Cowell seems "not proud" of the way he once treated contestants during his early years on 'American Idol.'

The longtime judge, best known for his sharp tongue and harsh critiques that became a trademark of the show, has now openly 'apologised' for his behaviour toward aspiring singers.

According to Deadline, Cowell, in an interview with a leading newspaper, admitted that he regrets the tone he used on the hit reality series and also admitted that he now feels uncomfortable watching old clips where he delivered personal insults.

Cowell also reflected on those early seasons and explained that much of his bluntness came from pressure to deliver strong talent or risk the show being cancelled. As he put it, he...