October 29 marked a historical moment, as BTS's Jin performed his first solo single "The Astronaut" live for the first time ever, with Coldplay!

On this day, Jin made a special guest appearance during Coldplay's 'Music of the Spheres' world tour stop in Buenos Aires, Argentina. Here, Jin had the opportunity to perform "The Astronaut", written and composed by Coldplay, on the most beautiful, dreamlike solo artist debut stage.

Share this monumental moment with Jin at Coldplay's 'Music of the Spheres' show in Buenos Aires, above!

Meanwhile, Jin's first single "The Astronaut" topped iTunes song charts in 97 countries soon after its release on October 28, which the special physical single album recording over 700,000 copies in first day sales.