And Kimye's baby's name is...

Los Angeles — And the baby de jour's name is ... Saint West.

Two days after announcing his birth, Kim Kardashian West and hubby Kanye revealed the name of their new boy via Twitter and her app. Daughter North's brother was born on Saturday morning, weighing in at 8 pounds, 1 ounce (3.6kg).

While Saint and its derivatives are not unusual as surnames in English and several other languages, it is highly rare as a first name, with the title usually bestowed by religious authorities.

So, in other words completely predictable and fitting for the West family

Kim tracked her pregnancy online for her 37 million Twitter followers, and hinted at the arrival of her newborn by posting an image late on Friday of her bare belly with the caption, "Ready whenever you are lol."

North was born in 2013.

Kim, 35, and Kanye, 38, were married last year in Florence, Italy, in a gala ceremony filmed for E!'s "Keeping Up With the Kardashians." West proposed to his bride in October 2013, renting out San Francisco's AT&T Park for the occasion.