Though estranged, the pair did not hide their affection for one another. They posed together on the red carpet, with Lavigne placing her hand on Kroeger's stomach at one point as his arm was around her. Neither wore their wedding rings, however.
The 31-year-old singer also shared a sweet Instagram with the Nickelback frontman from inside the star-studded soiree, writing, "Grammy Party ..... Feeling great. Lovely night."