Resting up for next week's CMA Music Festival, Kellie Pickler is squeezing in some pre-summer fun on a luxurious vacation in Cabo San Lucas with her hit-making husband Kyle Jacobs. Down south of the border, the two have been tweeting poolside pictures, catching rays and sipping on oversized boat drinks, giving Kellie vacation brain.

On Wednesday, she shared a Throwback Thursday shot with her grandma Faye, posting, "Just realized it ain't Thursday -- it's Wednesday! So when you read my last post let's pretend like it's Thursday. Lol!"

Kellie and Kyle might be soaking up inspiration for some new summer jams.