Taylor Swift and Selena Gomez were once inseparable but a string of rumors in March hinted that that the two might have had a falling out. This was then echoed after Gomez unfollowed everyone on Instagram in April, including Swift.

But the singers were spotted together again at the 2014 Met Gala in May, and all seemed well again.

For Gomez's 22nd birthday today, Swift showed everyone that the friendship was still strong with a photo and a birthday message addressed to Gomez on Instagram.

Swift writes in the caption, "Usually this S represents 'Swift' but today I'm wearing it because SELENA IS 22!!!!"

The emphasis on the number 22 is in reference to Taylor's hit song, '22,' which celebrates feeling young at the age. "I don't know about you," the lyrics go, "But I'm feeling 22 / Everything will be alright / If you keep me next to you."

We're glad to see that the two young stars are keeping their BFF status alive!

See Taylor Swift + Other Celebrity Yearbook Photos