The Black Keys star Dan Auerbach's Grammy Awards celebrations were bittersweet on Sunday night - the rocker has reportedly split from his wife.

The four-Grammy winner's partner Stephanie Gonis didn't accompany Auerbach to music's big night and now sources tell UsMagazine.com the couple is heading for divorce.

The alleged break-up comes just months after the rocker's Black Keys bandmate Patrick Carney wed his second wife Emily Ward.

Auerbach and his wife have a four-year-old daughter called Sadie.

A representative for the rock star did not respond to a request for a comment.