Ansel Elgort Confirms Fatherhood, Baby Mama Unknown

 took to Instagram on Tuesday to confirm that he has welcomed his first child, a son.

The actor did not mention a romantic partner or make reference to the mother of his child in his posts. 

It comes nearly one month after the 31-year-old actor was while out in .

Elgort first debuted a new song called Canopy (in the kitchen), which he beautifully sang to his baby while strumming an acoustic guitar.

A second post featured a striking, up-close black and white image of the father and son, which the actor said he printed himself. 

He added a heartfelt caption, formally announcing that he's become a parent: 'Fatherhood is exhilarating, exhausting, it’s everything and more. The present feels more present and the future brighter. 

'He wakes us up all night and yet I’ve never felt stronger during the day. He goes from crying to laughing, expressing everything he feels and it’s freed me to do the same.'

The sentimental note continued, 'I wanted to keep it sacred, just for us, but now I want to share this story with you as it’s the brightest happiest thing I’ve ever experienced. I hope it brings you happiness too.'

Elgort signed off, 'So much love, Ansel.'

Elgort shared a photo of himself via Instagram Stories and said he had plans to go to the Knicks game on Tuesday evening