Gwen Stefani constantly amazes us. Just six months after giving birth to baby Apollo, the svelte singer was spotted in a sheer top heading out to an event during New York Fashion Week.

Last night, the mother of three wore a dark leather jacket, with drop-crotch print pants and her hair down in curls. No matter what time of day -- Gwen is the picture of perfection!

Later that night, she debuted Apollo while attending the 2014 US Open. The two made quite the adorable scene!

The platinum rocker has been making the rounds in NYC recently, talking about her new gig on NBC's The Voice. Just last night she appeared on Late Night and sat down with host Seth Meyers and talked about getting the job offer to host the hit singing competition.

Stefani, who was pregnant at the time, said, "I got this call out of nowhere ...My parents were over...I just put the phone down and I was like, 'My life is so weird. They just asked me to do The Voice." The No Doubt songstress said of giving birth to son Apollo earlier this year, "I feel like I've been in a cocoon having a baby and now I'm like a butterfly."