Fans felt a flood of emotions, as some celebrated the return of Delena, while others wondered why Demi would reach out like that.
Last year, Demi explained why she had unfollowed Selena on Twitter and how they were no longer friends, telling Watch What Happens Live host Andy Cohen, "I think it's just one of those things where people change and people grow apart."
Later in the year, Demi appeared to be throwing shade at Selena on Twitter...so we're kind of surprised that they'd be reuniting.
Demi Lovato started following Selena Gomez on Instagram! pic.twitter.com/Y8NpFvNGvv— Selena Charts (@SelCharts) August 17, 2015
Demi followed Selena on instagram wtf 😒😒— Selena Gomez (@selenursbeth) August 17, 2015
Demi : *followed Selena on instagram* Selena : New phone who dis— Selena Gomez (@vocalgomez) August 17, 2015
Demi followed Selena on instagram. Looks like someone wants their friendship back.— Maggie (@seledise) August 17, 2015
DEMI FOLLOWED SELENA ON INSTAGRAM. THIS IS THE BIGGEST MOMENT OF 2015 THUS FAR.— Charlie ●—● (@therealcharlie) August 17, 2015
DEMI FOLLOWED SELENA ON INSTAGRAM MY 2009 DELENA HEART IS ALIVE— ️con(no)r (@normanithequeen) August 17, 2015