Dolly Parton sings 'Happy Birthday' to Loretta Lynn, who turned 90

Loretta Lynn celebrated her 90th birthday on Thursday, and she received a special shout-out from country stars like Maren Morris and Carrie Underwood -- but it was Dolly Parton who stole the show.

In a video message posted to the "Coal Miner's Daughter" singer's socials, folks like Garth Brooks and Trisha Yearwood and Tim McGraw and Faith Hill took turns celebrating Lynn's milestone birthday and sharing how much she means to them.

"Thank you for showing girls like me how it's done," Ashley McBryde said, with Brandi Carlile, Martina McBride, Carly Pearce and more joining in.

"I love you with all my heart, and I send best wishes to you. You go, girl!" Reba McEntire added.

Of course, no birthday tribute would be complete without a rendition of "Happy Birthday," and Parton performed a version of it at the end, swapping out the last line for a riff on one of her most famous songs, singing, "We will always love you."

As for how Lynn feels about getting older, she said, "When people tell me I'm 90 - There's no way that can be true. I still feel 40!"