Halsey is reportedly engaged to boyfriend Avan Jogia.
On Tuesday, curators at celebrity gossip website Deuxmoi posted a series of photos showing the Without Me hitmaker and Canadian actor-singer enjoying a romantic picnic at a park in New York City.
Halsey, who uses both "she/her" and "they/them" pronouns, is seen wearing a sundress and cowboy boots with their bright pink hair swept back with a clip.
A close-up image also shows the star displaying a cluster ring featuring a large green stone and diamonds on their ring finger.
Representatives for Halsey, real name Ashley Frangipane, have not yet commented on the report.
Halsey, 29, and Avan, 32, started dating last year. The New Jersey native was previously in a relationship with screenwriter Alev Aydin, with whom they share a son named Ender.
On Monday, Halsey celebrated her little boy's third birthday by sharing a sweet post on Instagram.
"Happy Birthday Ender! You're 3! The brightest, funniest, most empathetic, creative, and kind soul. I love everything about you. Everyday I am reminded how lucky I am to be your mommy. Every year since you were born is the new best year of my life," they wrote.
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