Hall and Oates are suing Haulin' Oats, a Brooklyn-based granola product manufactured by the company Early Bird, for profiting off of their trademarked property.

The rockers filed suit in Brooklyn federal court.

Their legal claim argues that the Early Bird company's product "is an obvious play upon plaintiff's well-known Hall and Oates mark, and was selected by defendant in an effort to trade off of the fame and notoriety associated with the artist's and plaintiff's well-known marks," according to the New York Post.

A spokesperson for Hall and Oates reiterated the claim to Rolling Stone.

"Hall and Oates' company, Whole Oats Enterprises, owns a federal trademark registration for the identical mark 'Haulin Oats' covering breakfast foods," the spokesperson said.

Haulin' Oats granola is described as a "small-batch" offering and is sold in a three-pack for $27. A 12-pack is $104. The Early Bird website says it's already being sold in 38 states, Europe and Japan.