Photo: Getty

Rihanna might have attended the Grammy Awards solo, but after the ceremony, she caught up with the billionaire rumored to be her boyfriend, Hassan Jameel.

Related article: The Sexiest Celebrities Who Turned The Heat Up At The 2018 Grammys

The two partied at 1Oak Nightclub in New York City on Sunday night, according to People. They were spotted leaving the venue separately; Jameel stepped out at around 3:45 a.m. and Rihanna followed not long after.

Photo: Getty

Rihanna was wearing her third Grammys outfit, which consisted of a shimmery tie front top and wide leg pants by Yves Saint Laurent, a great follow-up to her patent leather Alexandre Vauthier couture ensemble and crystal-covered “Wild Thoughts” performance look.

Related article: Rihanna Wore Head-To-Toe Patent Leather To The Grammys

She added some gold accents—in the form of a choker, hoop earrings and heeled sandals—and her makeup makeup look featured electric purple eyeshadow and a shiny, rose gold lip.

Jameel, on the other hand, went with a causal gray shirt and black hoodie.

Hassan Jameel
Photo: Getty

Rih and Jameel first sparked romance rumors in June 2017, after they were spotted having a steamy makeout sesh in a pool in Spain. They were also seen enjoying a date in Ibiza not long after that.

The couple has not yet publicly confirmed or even addressed their rumored relationship since then, but in July, a source revealed that the two “have been hooking up for a few months.”

As the months passed, more meetups ensued. In August, the pair was seen sneakily hiding under an umbrella in London and in October, they had an adorable, low-key Halloween date in Boston (Rih dressed up as Kylo Ren and Jameel was a penguin).

Jameel is a Saudi Arabian businessman and Toyota heir. His family owns a soccer league and is worth $1.5 billion.

Related article: Rihanna’s Performance At The 2018 Grammys Was Everything

This post originally appeared on Harper’s Bazaar US.