Zac Brown Band's fourth studio album, JEKYLL + HYDE, is coming out April 28.

The first project under ZBB's new partnership with designer John Varvatos, Big Machine and Republic Records, the album features guest appearances by former Soundgarden and Audioslave singer Chris Cornell ("Heavy Is the Head") and pop star Sara Bareilles ("Mango Tree"), as well as a song written by Americana artist Jason Isbell ("Dress Blues").

Brown and company plan to preview new music from JEKYLL + HYDE on their first appearance of Saturday Night Live this weekend (March 7). The album's first single, "Homegrown," was released in January.

JEKYLL + HYDE track list:

1. Beautiful Drug

2. Loving You Easy

3. Remedy

4. Homegrown

5. Mango Tree (feat. Sara Bareilles)

6. Heavy Is the Head (feat. Chris Cornell)

7. Bittersweet

8. Castaway

9. Tomorrow Never Comes

10. One Day

11. Dress Blues

12. Young and Wild

13. Junkyard

14. I'll Be Your Man (Song for a Daughter)

15. Wildfire

16. Tomorrow Never Comes (Acoustic Version)

Meanwhile, the band also announced the dates to their summer tour:

May 1: Nashville

May 7: Raleigh, North Carolina

May 8: Alpharetta, Georgia

May 9: Alpharetta, Georgia

May 16: Gulf Shores, Alabama

May 21: Maryland Heights, Missouri

May 22: Cincinnati, Ohio

May 23: Cuyahoga Falls, Ohio

May 24: Burgettstown, Pennsylvania

June 4: Charlotte, North Carolina

June 5: Virginia Beach, Virgina

June 6: Hartford, Connecticut

June 7: Bangor, Maine

June 13: Jacksonville, Florida

June 27: Ozark, Arkansas

June 28: Milwaukee

July 3: Denver

July 9: Salt Lake City

July 10: Boise, Idaho

July 11: George, Washington

July 12: Ridgefield, Washington

August 6: Darien Center, New York

August 7: Boston

August 8: Boston

August 14: Washington, DC

August 15: Philadelphia

August 21: Flushing, New York

August 23: Bethel, New York

September 6: Saratoga Springs, New York

September 11: Chicago

September 12: Detroit

September 19: Del Mar, California