Demi Lovato has a billion reasons to celebrate…

The 31-year-old half-Mexican American actress/singer and Clean Bandit’s five-year-old duet “Solo” has become the newest member of YouTube’s Billion Views Club.

The electronic dance track’s music video has been watched more than one billion times on the video platform since it was uploaded in May 2018.

The wide-lens project finds Lovato, whose vocals are featured on the song, singing to the camera in between shots of Clean Bandit’s Jack and Luke Patterson cooking up a mysterious drug in a basement lab underneath a laundromat.

At the end, a patron played by Clean Bandit’s Grace Chatto tests out the drug on her boyfriend — who promptly turns into a rainbow-colored dog.

“Since you been gone/ I’ve been dancing on my own,” Lovato sings. “There’s boys up in my zone/ But they can’t turn me on.”

“Solo” bowed at No. 58 on the Billboard Hot 100 about a month after it first debuted on the chart in July 2018. It was also that year’s most searched song on Shazam, with Nicky Jam and J Balvin’s “X” and Calvin Harris and Dua Lipa’s “One Kiss” following close behind in second and third place.

The song soared to No. 48 on the Streaming Songs chart in August 2018, showing 14 percent streaming gains that month. Shortly prior to the spike, Lovato was hospitalized due to a near-fatal overdose.

The “Cool for the Summer” singer is currently gearing up to release A Very Demi Holiday Special on Roku. The December 8 program will feature live performances from Lovato as well as guest appearances from Paris Hilton, Tiffany Haddish and Trixie Mattell.