Celebrity Sightings in New York City - February 14, 2017Kim Kardashian West and Kanye West have revealed the name of their newborn daughter, who was born via surrogate Monday.

Hello, Chicago!

The reality TV shared the news on her app and website. Their third child bears the name Chicago West; though Kardashian did not share the reason, her rapper husband was raised in the Windy City.

The couple also gave unusual names to their two other children: 4-year-old daughter North West and 2-year-old son Saint West.

Kardashian broke the news of the baby's arrival at 12:47 a.m. on January 15 via her website with the message, "Kanye and I are happy to announce the arrival of our healthy, beautiful baby girl.

"We are incredibly grateful to our surrogate who made our dreams come true with the greatest gift one could give and to our wonderful doctors and nurses for their special care. North and Saint are especially thrilled to welcome their baby sister."

And of course, the baby's name has already sparked jokes on Twitter: