Keith Urban made good on his birthday promise to Loretta Lynn on Monday night (April 1): At the country icon's birthday celebration show at Bridgestone Arena in Nashville, Urban jumped out of a giant birthday cake.

As country singer Cam and the audience sang Lynn "Happy Birthday," stagehands wheeled a large (fake) purple birthday cake out to center stage. As the last "Happy birthday to you ..." began, Urban appeared from the top of the prop to join in. After the song concluded, he headed across the stage, to where Lynn was seated in the crowd, to give her a hug.

Urban's goofy birthday gift to Lynn began with a comment by the country legend in a press release announcing her star-studded birthday show: "I am so excited to celebrate my 87th birthday with all my friends. This is the first time I've ever had a birthday party! My birthday wish has come true," Lynn shared via a press release. "The only other wish I have is that Keith Urban jumps out of my birthday cake!"

On Twitter, Urban accepted the challenge: "Your wish is always my command Miss Loretta!!!!"

See More From Loretta Lynn's Birthday Celebration

Lynn's Bridgestone Arena birthday concert was in celebration of her 87th birthday, which is coming up on April 14. In addition to Cam and Urban, the show also featured performances from Garth BrooksAlan JacksonMiranda LambertLittle Big TownMartina McBrideKacey MusgravesDarius RuckerGeorge Strait, Jack White, Trisha Yearwood and many, many more.

Lynn has appeared in public sparingly since suffering a stroke in May of 2017, followed by a broken hip due to a fall in January of 2018. “I think people thought I wouldn’t come back from that,” Lynn admitted in October. “And they’re really shocked when I tell them, ‘Well, I’m doing good, I’m moving my arms, I’m moving all my parts, and I can still sing.’”

Lynn's newest album, Wouldn't It Be Great, dropped on Sept. 28. She'd postponed the project's release following her stroke, so that she could recover well enough to support the album.

“I don’t have nothing to prove, but I have stuff I want to do," she added back in the fall, "and my fans want me to do it too."

Loretta Lynn Through the Years