Cody Hibbard

In the semi-final episode, the final four musicians perform an acoustic set with Keith Urban; country music duo Brothers Osborne make a special guest appearance; Keith Urban decides who goes home and which final three move on to the finale.

In Memphis, the musicians stop at St. Jude Children's Hospital for a charity show before their concert to determine the final four artists who make it to Nashville; Little Big Town founding member Karen Fairchild joins Keith Urban in the audience.

One musician is sent home, while the remaining 11 earn a coveted seat on the tour bus and begin a thrilling 10-week ride through the highs and lows of touring.

The six musicians put on an acoustic performance to honor the military, featuring a special acoustic set from Keith Urban, with country music star Jordan Davis also appearing.

The second group of musicians take the stage as they battle it out during another night of dynamic and emotional performances; the musicians give an inside look into how they choose original and cover songs.

The tour bus catches up with Keith Urban and Blake Shelton in Oklahoma City, where the remaining nine musicians continue their pursuit of stardom; Gretchen Wilson takes the stage to perform her hit song "Here for the Party."