Singer Miley Cyrus has sent balloons to supermodel Tyra Banks to congratulate her on the birth of her first son York Banks Asla.

Tyra took to Instagram on Friday to share a photograph of balloons showcased on the staircase of her house, spelling out the baby's name, reports aceshowbiz.com.

"Your congratulations balloons are huge and on our stairway, @mileycyrus. We're looking at them now like, 'Whoa! They're so cool!' Love and appreciate you so much! (love) T&E," Banks wrote alongside the image.

Banks and her boyfriend Erik Asla announced on Wednesday that they welcomed York via a surrogate.

She posted on Instagram a photograph of the newborn's hat along with caption: "The best present we worked and prayed so hard for is finally here."

"He's got my fingers and big eyes and his daddy Erik's mouth and chin. As we thank the angel of a woman that carried our miracle baby boy for us, we pray for everyone who struggles to reach this joyous milestone. York Banks Asla, welcome to the world."