Merry Christmas Tim McGraw fans!!!     Tim is playing Santa Claus for all of you, by offering a free downloand of his brand-new song, 'Christmas All Over the World'!    Tim joined up with The Boot to offer the song as a gift to his fans.   "I'm very appreciative of the support my fans have given me over the years, and I wanted to say 'thank you' to them with this new holiday song," says Tim. "I'm really excited to be recording again, and I'll have new music to share early next year."   Read all about it here.   Tickets for Tim's summer "Brothers of the Sun" Tour with Kenny Chesney go on sale officially Saturday at 10am.  The two will hit the road with Jake Owen and Grace Potter and travel to 19 stadiums across the country.  They'll be at Paul Brown Stadium in Cincinnati July 1st.   "Our friendship was forged on the road, so it's going to be a blast heading out with Kenny again," says Tim. "We'll be having as much fun on stage as the fans will be having in the audience."    Take a listen to "Christmas All Over the World" right here!