Celebrity friends of Wanna One attended the first day of Wanna One’s final concert “Therefore” on January 24 at Gocheok Sky Dome.

The star attendees were Park Seo Joon, BIGBANG’s Seungri, and Ahn Jae Hyun, and they took backstage photos with some of the Wanna One members.

Hwang Min Hyun posted a photo of himself with Park Seo Joon and wrote, “I was so happy today! Thank you. And thanks to Seo Joon hyung for coming.”

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오늘 너무 행복했어요! 감사합니다? 그리고 서준이형 와주셔서 감사해요????

A post shared by 황민현 (@optimushwang) on Jan 24, 2019 at 6:55am PST

Kang Daniel also took a picture with the actor and shared on his own post, “Seo Joon hyung, hehehe. Thank you so, so much for coming to our concert. We were able to work even harder thanks to your support! See you again today,” suggesting that Park Seo Joon will be attending the second day of the concert as well.

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서준이행님ㅎㅎㅎ 콘서트 와주셔서 너무너무 감사해요. 형 응원덕에 더 열심히 할수 있었어요! 오늘도 또 봐요??????

A post shared by 강다니엘 OfficialKangDaniel (@thisisdaniel_k) on Jan 24, 2019 at 10:00pm PST

Another star who came to support Kang Daniel was BIGBANG’s Seungri. Kang Daniel’s post reads, “Brother Seungri!! Thank you so, so much for coming to our concert. [I can’t believe] the busy ‘Seung-tsby’ (Seungri + Gatsby) came to see me, hehehe. Thank you so, so much.”

Seungri also posted the same image on his own Instagram with the words, “I hope you will treasure the precious memories with your members and grow further.”

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승리 브라더어얼!! 콘서트 와주셔서 너무너무 감사해여 젤바쁜 승츠비가 날보러와주다니ㅎㅎㅎ 너무너무 감사합니다????

A post shared by 강다니엘 OfficialKangDaniel (@thisisdaniel_k) on Jan 24, 2019 at 9:56pm PST

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정든 멤버들과 함께했던 소중한 시간을 가슴에 품고 한층더 성장하길 바라며 @thisisdaniel_k #강다니엘 #워너원

A post shared by Seung Ri (@seungriseyo) on Jan 24, 2019 at 10:05pm PST

Lai Guan Lin posted a selfie of himself and Ahn Jae Hyun and wrote as a hashtag, “I worked hard for both the photo and our stage.”

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#열심히했어요사진이든무대든

A post shared by LAI KUANLIN·라이관린 (@official_lai_kuanlin) on Jan 24, 2019 at 7:34am PST

Which celebrities do you think will attend the remaining “Therefore” concerts?