1. “Are You Sure” with Willie Nelson
Collaborating with Willie Nelson only proves Kacey’s status as legendary in country music. This sweet and soulful song has all the vibes of a classic. In fact, you can hear the emotion in Kacey’s lyrics. Willie’s voice really compliments hers, creating a timeless song. Surely enough, they created something beautiful for a rainy day—or as Kacey likes to say, emo yeehaw music.