He is good friends with Simon Cowell even though they argue a lot.
His first appearance on TV was on Popstars the Rivals.
He in one of the judges on the X Factor along with Sharon Osbourne and Simon Cowell.
At the age of fifteen Louis began promoting his first band, Time Machine.
At the age of fifteen Louis began promoting his first band, Time Machine.
He has been soaked by water by his fellow judge on the X Factor, Sharon Osbourne.
Louis has threatened to walk of the X Factor but never has.
In 2001, Louis made his first foray into television on the Irish version of Popstars. The show made Louis a household name in Ireland.
His act Shayne Ward won the 2nd series of the X Factor.
His career as a pop band manager has not been all success. He has had failed acts such as The Carter Twins. His notoriety has even got him his own song - "Louis Walsh" by Irish band The Revs.
Among his more successful acts was singer/songwriter Johnny Logan, three times winner of the Eurovision Song Contest.
As of October 2004 his acts have totalled 27 number one singles.
His birthday is 5th August.
Louis in praise for fellow judge Sharon Osbourne: Actually, I was really worried about meeting Sharon, I'd slagged off her daughter, Kelly, somewhere. I'd said I thought she was talentless and shouldn't be making records.
He has successfully managed the careers of Boyzone, Westlife and Girls Aloud.
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