Buckle up, we've got some 21st-century rock band beef brewing between Greta Van Fleet and The Black Keys.
Greta bassist Sam Kiszka took a jab at the Black Keys in a recent interview, pointing out that the band hasn't put out a record in years and saying they need to "decide whether they are some band, or a very serious staple rock band".
Kiszka's band, meanwhile, is already planning their follow-up album to last year's Anthem of the Peaceful Army.
Black Keys frontman Dan Auerbach said last year that he and drummer Pat Carney "have plenty of music left in us" and "will get back together at some point".