LOS ANGELES (Reuters) - Country-pop star Taylor Swift will co-host the Grammy nominations live on television from Nashville, the capital of country music, the Recording Academy said on Monday. Swift, 22, who has won six Grammy awards, will join rapper-actor LL Cool J to announce nominees in some of the major categories during a one-hour live telecast on December 5, featuring performances from country artist Luke Bryan and pop-rockers Maroon 5. ...