Want to learn how to play Rascal Flatts on the guitar? With this tutorial you can learn how to play "What Hurts the Most" by Rascal Flatts on the acoustic guitar. The capo is on the 1st fret used in standard tuning. This version is a simplified version of the song and is not exactly how Rascal Flatts play it. This lesson is geared towards intermediate guitarists because it assumes prior knowledge of guitar playing. Watch this how to video and you will be able to sing and play along to ""What Hurts the Most" by Rascal Flatts.