Billie Eilish and her older boyfriend, Jesse Rutherford, are Instagram-official.

Billie Eilish and his Boyfriend Jesse Rutherford

Billie Eilish made her controversial relationship with her much-older boyfriend, Jesse Rutherford, Instagram-official early Tuesday.

The “TV” singer, 20, shared a carousel of photos from her weekend of Halloween celebrations.

including one of her and the Neighbourhood vocalist, 31, in costume as a baby and an elderly man, respectively.

The new couple raised eyebrows on Sunday when they debuted their Halloween costumes at a star-studded party, 

with Eilish wearing a bonnet, a bib and doll makeup while Rutherford sported a bald cap and a gray mustache.

“can’t believe billie eilish and jesse rutherford didn’t dress up for halloween,” one fan tweeted, poking fun at the pair’s 10-year age gap.

Eilish and Rutherford first sparked dating rumors in mid-October when they were photographed having dinner together in Los Angeles.

The next evening, they were spotted holding hands at Universal Studios’ Halloween Horror Nights.

Eilish has a history of dating older men: She was previously in relationships with rapper Brandon “Q” Adams, who is five years her senior, from 2018 to 2019