Jennifer Garner turned 50 on April 17, but the celebrations began a few days earlier when she received a surprise from her childhood celebrity crush, Donny Osmond.

The actress documented the encounter on Instagram. In the video, she is seen sitting shocked in a restaurant when she gets a personalized video greeting from Osmond, 64, who is performing a birthday song for her.

She had no idea her hero would appear moments later.

Jennifer Lopez snuck up behind Garner and sang, “Jennifer! Jennifer!” before she could thank whoever made the virtual welcome possible. It’s your special day!”

Garner stood from her seat, flushing and holding back tears, and embraced Osmond, who had brought a “13 Going On 50!” birthday cake. “My favorite is Donny!”

“My first (pre)birthday surprise was a stinker— the one and only, legend in his own right, object of my childhood love and admiration and devotion— the one and only, legend in his own right, @donnyosmond showed up to knock my purple socks off,” the “Alias” star wrote in the video caption.

The singer took a seat next to Garner and joined her in an impromptu rendition of some of his prior songs, including “Make the World Go Away.”

Garner thanks Osmond for making her pre-birthday celebration especially memorable.

Garner stated, “He took an hour and a half out of his day to sit with me, sing my favorite songs, and teach me how to be a class act.” “Donny, thank you very much.”

She also commended Osmond’s sister, Marie, and his wife, Debbie.

Osmond posted Garner’s video on his Instagram account, along with a note and an invitation.

“One of my favorite things to do is surprise fans, so I was ecstatic when I got the chance to surprise the wonderful @jennifer.garner for her 50th birthday,” the singer wrote. “Thank you for asking me to share in your joy!” Come visit me at @harrahsvegas the next time you’re in town to be my special guest on stage. ”

Birthday wishes poured in from fans and industry colleagues in the comments section of Garner’s article.

“I honestly believe this is the finest surprise ever!” “Oh, the delight!!!” Rita Wilson said

“This is unbelievable,” Gwyneth Paltrow wrote.

If you follow Garner on Instagram, you’ll notice that her feed is refreshing. Garner is the type of person you’d want to be friends with, from her entertaining faux cooking shows to her recommendations for how people can give back to the community.

The cute relationship between Osmand and Garner shows that even famous actresses, like us, had people they looked up to when they were young.

Throughout America in the late 1970s, the “Donny & Marie” program was a fixture. Back then, Osmond was a well-known teen idol with many female fans all over the world, including, according to rumors, Garner.

Garner was raised in West Virginia and had a very average upbringing. She is the middle child of two working parents who used to take the family to church on Sundays. She also took ballet lessons, and when she chose to be an actor, she had to work as a waitress to make ends meet.

Jennifer Garner, happy birthday! We’re thrilled to see you celebrate your 50th with such joy. This was a boyhood fantasy come true.

In the video below, you can see how the surprise played out.