Dierks Bentley is on a roll!  The guy keeps firing out big song after big song.  Dierks had a lot of success with "Home" and "5-1-5-0" and now he's ready to release a new single to radio.  "Tip It On Back" will hit radio airwaves very soon, but here's your chance to hear it before we play it.  This video was taken as Dierks performed live on Letterman!  Check out the new song "Tip It On Back."

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