Demi Lovato shares sweet birthday message with Nick Jonas on Insta

Now, that’s friendship.

Long after her relationship with Joe Jonas, Demi Lovato’s friendship with the Jonas brothers (throwback) has continued to grow from strength to strength ever since. Demi even toured with younger brother Nick last year and it seems the pair are closer than ever because of it. Taking to Instagram to share a birthday message with Nick, Demi reminded fans of just how important the singer is to her, saying:

“Happy Birthday to one of my absolute best friends Nick Jonas. "Many ups and downs over the last 11 years together but we’re still here for one another no matter what,” she wrote alongside a sweet picture of the pair. “Hope you have an amazing year, you deserve it!"

Happy birthday to one of my absolute best friends @nickjonas. Many ups and downs over the last 11 years together but we're still here for one another no matter what. Hope you have an amazing year, you deserve it! Ps. We need new pics together ?

A post shared by Demi Lovato (@ddlovato) on Sep 16, 2017 at 10:42am PDT

Joe also took to social media to wish his little brother happy birthday with a sweet collage of pictures and a string of tweets.

“Happy Birthday to my best friend/brother, Nick Jonas. You are wise beyond your years,” Joe wrote. “You continue to impress and inspire me and those around you. Have the best day and plenty of beer. “I’ll make sure of it since I’m sitting right next to you right now.”

Happy Birthday to my best friend/brother @nickjonas you are wise beyond your years.

— J O E J O N A S (@joejonas) September 16, 2017

You continue to impress and inspire me and those around you. Have the best day and plenty of Coors lights.

— J O E J O N A S (@joejonas) September 16, 2017

I'll make sure of it since I'm sitting right next to you right now. Here's to another great year! ? pic.twitter.com/0uIHSfxybu

— J O E J O N A S (@joejonas) September 16, 2017