The tune is HIGH-KEY the best thing we've ever listened to, and we say that knowing we are completely bias... but for reals, it's amazing.
And we're not the only ones who are totally obsessed. Along with Harry's old One Direction band-mates, many other celebs took to Twitter to let us know how they felt.
Niall gave us a simple, "Love it H." Whereas Liam wrote, "@Harry_Styles proud of you H. Glad you're getting to do your own thing."
No word yet from Louis which is hurting our #Larry soul a little bit, and silence on Zayn's end, but some other celebs gave Harry the congrats.
SO PROUD OF YOU HAZ.
Seriously, it's an 11/10, and because we know you're just as obsessed, here it is again. Your ear holes can thank us later: