Ben & Jerry’s, Burlington, Vt., partnered with the rock band Phish to introduce Phish Food.

Phish Food consist of chocolate ice cream with gooey marshmallow swirls, caramel swirls and fudge fish. Plus, a portion of the proceeds go to the Waterwheel Foundation, the band’s non-profit organization that supports causes such as clean water, land conservation, urban gardening and more.

Phish’s illustrator Jim Pollock designed the packaging.