Jessie J showed off her baby bump in a see-through catsuit at her acoustic gig at the O2 Shepherd's Bush in London on Tuesday.
The 34-year-old, who is expecting her first child with basketball player Chanan Safir Colman, looked as proud as ever in the striking number — which left little to the imagination.
The Price Tag singer, whose black underwear was on full display, strutted the stage in a pair of high heels to complete the look.
The star announced in January that she was pregnant and expecting a boy.
In the announcement she told her Instagram followers it felt "so strange to be on this side" after previously experiencing pregnancy loss.
The former The Voice UK judge had a miscarriage in November 2021 — one month after splitting from boyfriend of seven months, Max Pham.
She wrote last week: "Sat sobbing putting the pram together. Like sobbing loud.
"Still doesn't feel real. Happy, scared, can't believe it, excited af, what if I can't do it, he will be so small, I'm gonna love him so much tears..."
The Do It Like A Dude star has reportedly filmed a documentary about her career and tackling motherhood for the first time, which is set to hit screens later this year.