The Solo album sold more than 700,000 copies on the day of release and wrote a box office record. The first stage also met with former World fans overseas with World Star Coldplay. According to the agency Big Hit Music and Hanteo Chart on the 30th, 719,012 copies of The Astronaut released on the 28th were sold as of the day before the Hanteo Chart. The eye-catching point is that it is a considerable sales volume considering that only one single title song of the same name is recorded. This Solo album is a combination of a calm acoustic guitar and a synth sound in the pop rock genre, and you can feel the true value of Jin who was in charge of the vocals in the group. It maximizes the deep sensitivity and the refreshing yet dreamy atmosphere. Thanks to it, it also ranked # 1 on the iTunes top song charts in 97 countries around the world, including the United States of America, the UK, Germany and France. The music video also ranked # 1 on YouTube's popularity in the world, including Korea, United States of America, Indonesia and Brazil, with 22.47 million views as of 9 am on the day. While Jean was writing various records, the first stage was decorated as a member of the global group. Jin made a surprise appearance at the National Congress of Argentina election on the 29th (Korea time) and at the concert of popular band Coldplay in 2021 Tina Buenos Aires, and performed the Solo stage. On this day, Jean was introduced by Coldplay vocalist Cristiano Ronaldo Martin Scorsese and appeared on the other side of the main stage. When Jean appeared wearing jeans and a gray knit and a dark jumper on top of it, fans shouted ⁇ BTS! ⁇ JIN! ⁇ with a shout. He took a pink microphone, a custom microphone for each BTS member, and called a piece of Shandy Astronut, then ran to the main stage and hugged Cristiano Ronaldo Martin Scorsese. Cristiano Ronaldo Martin Scorsese also means to thank you for participating in composing, writing and playing. Cristiano Ronaldo Martin Scorsese received a warm applause from the fans on the day of the show with a breath between Jean and Mike. BTS and Coldplay have been acquainted with the United States of America Billboard single chart ⁇ Hot 100 ⁇ with the collaboration song ⁇ My Universe ⁇ (My Universe) last September. Jin made a single with a lot of gratitude and affection for Ami (fandom), which made me shine, and introduced the song lyrics as "I am the story of you Ami who finds the dream of Jin". I also always greeted with the members, but I was so nervous and nervous that I was alone. I was able to feel the importance of the members once again while preparing the ⁇ Solo single. Regarding the new song, he said, "Originally, only one verse was Korean, and the second verse was English." But the day before the music video, Martin Scorsese said, "I like Korean Feelings in front of me. I wrote the lyrics all night. " I tried to make a lot of feelings of my brother (Martin Scorsese), but when I tried to mix Korean trot feelings that were popular in the 1980s and '90s, it became similar to the guide.