By Jasmine Allday Louis Walsh has made a savage jibe about Simon Cowell amid his stint on Celebrity Big Brother. The X Factor judge became a household name when he signed up for the talent show over two decades ago and he has now entered the house alongside his fellow judge and good friend Sharon Osbourne. The pair were given a special task to show off their judging skills, and Louis has not held back about sharing his opinions on the others since. However, even his former boss Simon Cowell can’t escape as Louis promised he’d be up for gossiping as much as he can about Simon during his time on…