If you have a physical copy of Tim McGraws new album, flip it over to the track listing, and check out the numbering.

The tracks stop at #10, and then jump to #13 for 'Highway Don't Care'.

At first I thought this was a typo... then I thought maybe there were some hidden tracks at the end of track #10.  Nope.

#13 is Taylor Swifts lucky number.  And Taylor Swift sings with Tim on 'Highway Don't Care'.

Now you know:)

Here's a pic:

tsm/big machine