Kaley Cuoco Goin' Country with Sam Hunt

Sam Hunt and Kaley Cuoco made some sort of connection at Hyde nightclub after the Grammys, because they walked out together and they're both very single.

Kaley filed for divorce from Ryan Sweeting back in September, and Sam's been single for a while.

The 2 hung out in the VIP section at the Republic Records party at Hyde before making their exit.

BTW ... we asked Sam if he owns any cowboy hats ... guess his answer.