When he sings "You're My Better Half", he's no doubt referring to Nicole Kidman
I have 
no doubt that many of you will smile and nod your head as you read... [DOC] [TLE] Keith Urban - You're My Better Half | Official Keith Urban Videos ... [PAR] keith urban - sweet thing (2009) (Digital Video Single) - he sang this at his jul 22/
15 concert; I'd never heard it ..... keith urban-he's my favorite country singer, and 
has had the best concerts I've ever been to!