Selena Gomez recently made the shocking revelation on Instagram that she had undergone a kidney transplant this summer, as a result of complications from her lupus. Her unexpected message to fans about recovering from the procedure explained why she had not been able to promote her new music. 

But the most touching part of the note was the beautiful shout-out to her donor, who was none other than her best friend Francia Raisa.

“There aren’t words to describe how I can possibly thank my beautiful friend Francia Raisa,” Gomez wrote. “She gave me the ultimate gift and sacrifice by donating her kidney to me. I am incredibly blessed. I love you so much sis.”

Donating her kidney was such a selfless act, but there is so much more to Raisa. Here are 15 facts about her friendship with Gomez and beyond to help you get to know how truly amazing she is.

1

Donating her kidney to Gomez changed Raisa's life.

"I am beyond grateful that God would trust me with something that not only saved a life, but changed mine in the process," she shared. "This was part of our story, and we will share it soon, but what is important now is that this is not the only story.

For more information regarding Lupus, please go to the Lupus Research Alliance website: www.lupusresearch.org -- Love you sis, so glad we’re on this journey together. ❤️ xx."

2

Raisa met Gomez a decade ago when Disney and ABC Family had their stars visit a children's hospital.

"Selena and I were in the same group and we just clicked,” Raisa told Latina in a 2013 interview.

3

She is not afraid to show her bestie lots of love on social media with the sweetest captions. They're a testament to the depth of their friendship.

"I went through heartbreak this year and you left the studio and drove out of your way to come see me and comfort me," Raisa wrote. "I received good news last month and you facetimed me minutes before you went up on stage just to congratulate me. There are so many moments we have and things you do that I cherish and don't take for granted. Wether its crying, laughing, or simply sitting on my kitchen floor throwing our hands up in the air confused at life, I'm thankful you're always there. I am obsessed with every memory we've built in the last 8 years and the ones we have yet to create. I am so grateful that God put you in my life when he did. If you think about the time that we met and where we were in our lives when we first hung out, his timing was perfect. It's been so inspiring watching you grow and to grow with you. I learn so much from you and I'm so so so proud of you. Happy Birthday Hermana. Love you so so so much @selenagomez."

4

Lounging in an XO hoodie shows that she definitely approves of her BFF's man, The Weeknd.

5

But there's more to Raisa than her connection to Gomez. The 29-year-old was born in Los Angeles, California and is a proud Latina of Honduran and Mexican descent.

Source: IMDB

6

Raisa has two younger sisters named Italia and Irlanda.

It's so cute that her parents stuck to a theme when naming their girls.

7

Raisa's father, Renán Almendárez Coello (aka El Cucuy De La Mañana), is a famous radio personality in Los Angeles.

"It's pretty incredible to have been a personal witness to all the hard work my dad has put into his career and looking out for his communidad," Raisa shared. "Very proud to share this moment with him. CONGRATUALTIONS DAD! My dad has a star on the Hollywood walk of fame y'all! Our last name is on a star!!! So crazy! #prouddaughter @elcucuydelamanana @irlandarubi @italiarenata como dice mi papa, esta estrella es para ustedes! Que suba los latinos!!!! #latinopride #mexican #hondureña."

8

Just like Gomez, Raisa has been an actress for over 10 years. She is best known for her role as Adrian Lee in ABC Family's (now Freeform) "The Secret Life of the American Teenager." Her next big gig is joining the "Black-ish" spin-off, "Grown-ish," as a series regular.

9

Raisa has been taking dance lessons since she was 5 years old and this video is proof that years of training paid off.

10

Gomez isn't the only inspiring Latina in Raisa's circle. She also shares a close bond with the kickass Gina Rodriguez.

"Can't even begin to explain how grateful I am to have this beauty in my life," Raisa wrote of Rodriguez in 2013. "You have been such a light to me and such an encouraging, inspiring spirit to be around. I love you and wish you the best, you deserve it. HAPPY BIRTHDAY."

11

She LOVES red lipstick. Scroll through her Instagram and you'll see that it's her statement color of choice.

12

Raisa has the cutest dog named Roman Gatsby.

13

She was in Lil Romeo's "My Girlfriend" music video in the early 2000s and the two have remained in each other's lives long after that shoot.

"Whenever I think about you the word Loyal always comes to mind," she wrote in 2015. "You have such an incredible heart and spirit and I'm so grateful to call you one of my best friends. Whenever I need you you're always there and I can't begin to express how much your loyalty means to not only me but to so many. You're an incredible human Rome. You're siblings are so lucky to have you as their big bro. I love you and I'm so excited for this next chapter in your life. Enjoy this little throwback. Happy Birthday @romeomiller."

14

She spends an hour a day journaling to express herself and aid in personal healing.

"My form of prayer, personal creativity, and overall expression of emotions is through journaling," Raisa wrote. "It's amazing how much you learn about yourself and grow just from writing. There are goals and dreams I set for myself and I tend to add new ones everyday. Sometimes life gets a little chaotic and one forgets, but because I write them down they are in my subconscious and I'm working towards them even if I don't realize it. I've been able to let go of pain, forgive, and learn to love again just from writing in my journal. Even when I don't have anything to say I just write. So I find a way to take an hour out of my day, every day, just to journal. And sometimes it's on the steps of a friends apartment building ???? #caught."

15

Her heart of gold goes beyond selfless acts like donating a kidney — Raisa dedicates herself to causes like ending human trafficking by supporting organizations like Unlikely Heroes.

She helped design this shirt to raise money for Unlikely Heroes' efforts to rescue children from sex slavery.