BLACKPINK K-pop star Jennie has released new track “ExtraL’’, a collaboration with U.S. rapper Doechii. Could these jumping mice change how astronauts exercise?

Blackpink's Jennie has teamed up with Grammy-winner Doechii on new music. The duo released the song "ExtraL" and its music video Friday. The track will appear on Jennie's upcoming solo album Ruby, which arrives March 7.

The reunion - which will also come with new music, as ROSÉ recently confirmed - will put an end to more than a year of the foursome spending time apart to focus on solo projects.

Love Hangover” is Blackpink singer Jennie's first solo single to fail to enter the top 40 on the U.K.'s list of the biggest songs in the country.

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"ExtraL" features Jennie's fresh musical avatar, blending her signature pop-infused vocals with Doechii’s razor-sharp hip-hop delivery. Produced by Dem Jointz, a veteran known for his work with Christina Aguilera, Kanye West, and K-pop groups like NCT 127 and Aespa, the track carries an edgy, club-ready beat with sleek instrumentation.

On the heels of winning her first Grammy, Doechii has joined forces with Jennie on the BLACKPINK member’s new single, “ExtraL.”