Brad Paisley released a new single titled "Southern Comfort Zone" to country radio on Thursday night (Sept. 20). It's the lead release from his upcoming album, due April 9. Paisley co-wrote the track with longtime collaborators Chris DuBois and Kelley Lovelace. Their writing credits also include "Water," "Online" and "Remind Me." In related news, Paisley will perform at the iHeartRadio Music Festival in Las Vegas on Saturday and will resume his Virtual Reality Tour in Tampa, Fla., on Sept. 27.