The 22-year-old midfielder, who moved to Elland Road on an initial emergency loan deal at the end of last week, has signed for The Whites for a £150,000 fee and has penned a three-and-a-half year deal with Denis Wise's side.
Kilkenny made 39 appearance's for Blues having signed from Arsenal in 2005.Debut Apps (+ sub) Goals Yellows Reds 05 Jan 2008 1 (0) 0 0 0 11 Aug 2007 24 (1) 3 4 0 20 Sep 2005 10 (29) 0 0 1 20 Nov 2004 31 (3) 5 7 0 First App. Apps (+ sub) Goals Yellows Reds 11 Aug 2007 25 (1) 3 4 0 22 Aug 2006 2 (12) 0 0 0 20 Sep 2005 8 (17) 0 0 1 20 Nov 2004 31 (3) 5 7 0