Yes just like most celebrities but not all of them!
Lady GaGa is left handed i am her sister so i know
Bradley and Louis Walsh are not brothers. Louis has appeared on "The Chase," a game show that Bradley hosts, but not due to family ties.
John Adeleye lost the sing off to Katie Waisell so Louis Walsh has now 3 acts remaining as of 6th November 2010
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He managed the bands Boyzone and Westlife. He also managed the lead singer of Boyzone, Ronan Keating when he went solo. He then became a judge on Popstars: The Rivals where he mentored Girls Aloud and then became a judge on the UK X Factor. He joined the show when it first started and is the only orginal judge still on the panel. He mentored series 1 runner up, G4 and series 2 winner, Shayne Ward and series 5 runner up, JLS.
You can send it to his management:
C/o Louis Walsh Management
24 Courtney House
Appian Way
Dublin 6
Ireland
If Nationality means like French or stuff like that, then he is most definitely Irish (GO IRISH PEOPLE. no offence to people who aren't Irish) If that isn't what Nationality means then I have no idea!!
Louis Walsh is a person. He is a judge on the X-Factor and is from Dublin. (The capital of Ireland) (whoo hoo go Ireland!) Also his name is pronounced as Louie Walsh.