You may or may not know that Garth Brooks and Martina McBride have history.

In fact, years ago, Garth took a young unsigned Martina under his wing, and she went out on the road with him to help sell Garth merchandise.

So the week’s best celeb tweet came yesterday (Dec. 20) after Martina went to one of Garth’s nine fundraising shows held at the Bridgestone Arena here in Nashville.

“Saw Garth tonight...he's still got it,” Martina wrote.

“I even sold a few t-shirts for old time's sake.”