Gwen Stefani is one hot mama (and mama-to-be)!

The 44-year-old singer posted a snap of her gorgeous pregnant self on Twitter today, Jan. 21, rocking a clingy black sweater that showed off her perfectly round baby bump. The No Doubt frontwoman paired the ensemble with skin-tight leggings, strappy stilettos and, of course, her signature red lipstick.

Stefani looks stunning in the all-black ensemble -- a look that she clearly seems to love, rocking the same dark hue earlier in her pregnancy.

The glowing singer is no stranger to happily revealing news about her baby. in fact, she just joined Instagram last week and did so by announcing the sex of her third child. It's a boy!

Stefani, who is married to singer Gavin Rossdale, is already mom to 7-year-old Kingston and 5-year-old Zuma, making the unborn baby the third son for the rockers.

Check Out Gwen Stefani's Baby Bump Twitter Pic