John Mellencamp’s upcoming art exhibition is larger than his first, a
reflection of his rising stock as an artist.

Titled “John Mellencamp: Expressionist,” the exhibition comprises more than 40 pieces. It opens Thursday and runs through Nov. 18 at the Butler Institute of American Art.

The Rock and Roll Hall of Famer had his first museum exhibition in 2013-14 at the Butler’s Trumbull branch. The new show is double the size, sprawling over two galleries on the second floor of the main museum on Wick Avenue.

“This one is more of a retrospective than the previous one,” said Louis A. Zona, executive director of the Butler and chief curator.

The new exhibition includes a few pieces that were in the first show. It also includes several montages and mixed media pieces.