Halsey is pregnant, expecting ‘rainbow’ baby with Alev Aydin. See the photo surprise.

Posing in a rainbow crochet bikini top and jeans, Halsey surprised the world Wednesday with a pregnancy announcement.

Fans cooed over the unexpected maternity photos, shot by 21-year-old photographer Sam Dameshek in front of a silk drape background.

The pop singer, born Ashley Nicolette Frangipane, grew up in Washington, Warren County. She is expecting her first child with boyfriend Alev Aydin, 37, who she tagged in the photos.

This is not Halsey’s first pregnancy. She suffered a miscarriage while on tour in 2015 and had her eggs frozen after being diagnosed with and undergoing surgery for endometriosis. In a 2019 tweet, she said she had experienced three miscarriages.

“My rainbow,” she said in a tweet Wednesday. The message and rainbow bikini (and rainbow emojis) ostensibly referred to “rainbow baby,” a term for a baby that arrives after a previous miscarriage, stillbirth or death of an infant.

“I want to be a mom more than I want to be a pop star,” she told Rolling Stone in 2016. “More than I want to be anything in the world.”

Aydin, a screenwriter, had only been tentatively linked with Halsey in recent months, but is sure to become one of the most Googled people this week. In October, he was seen with Halsey buying art supplies in Los Angeles.

“I left my house once in like the past three months and you guys know this because I got mf papped,” she tweeted Saturday, perhaps referring to Daily Mail photos of the art store outing with Aydin.

Aydin (see photo below) shared her pregnancy photos on his Instagram stories.

“Heart so full, I love you, sweetness,” he said in a comment on her post.

The singer, who is known for her chameleonic hair and makeup styling, recently launched about-face, her own cosmetics line. On Jan. 22, she canceled her previously postponed Manic world tour, citing the safety risk to fans during the COVID-19 pandemic.

Halsey, an alum of Warren Hills Regional High School, released the album “Manic” in 2020 and recently spoke out about the lack of Grammys love this year for her and other artists like The Weeknd.

“Without Me,” a single from the album, topped the Billboard Hot 100 in 2019. Halsey was nominated for two Grammys in 2016, for “Closer,” her collaboration with The Chainsmokers, and as an artist featured on Justin Bieber’s Grammy-nominated album “Purpose.”

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Amy Kuperinsky may be reached at [email protected] and followed at @AmyKup on Twitter.