LOS ANGELES (Reuters) - Country music artists will share the spotlight with rising stars and veteran performers at the Grammy Awards on Sunday as they take the stage for music's biggest night. Grammy organizers want to bring the attention back to the music this year, after the death of singer Whitney Houston the night before last year's awards ceremony cast a pall over the live show. This year's key categories are dominated by male artists, with British folk band Mumford & Sons, indie-pop trio FUN. ...