Managed by Pledis Entertainment, he is a member of the boy group Seventeen, the leader of its performance team,[1] and part of its subunit BSS.

[12] On February 19, 2025, Pledis Entertainment announced that Hoshi would be debuting in a sub-unit with Woozi with the release of a single album titled Beam on March 10.

[16] To promote the brand, Jongga sponsored a kimchi-inspired Vogue Korea fashion pictorial which depicted Hoshi in various themes of red.

[24] In April 2020, Hoshi's father Kwon Hyuk-doo visited on his behalf the administrative welfare center in Hwado-dong, Namyangju, and delivered ₩1.54 million worth of eco-friendly sterilized water to the Gyeonggi Community Chest of Korea.

[25] On October 29, 2020, Maseok High School in Gyeonggi Province announced that Hoshi had donated ₩23.1 million in scholarships for enrolled students in need.

Hoshi's donation was held to commemorate his 26th birthday and he joined the sponsorship activities after hearing that more and more neighbors were in need of help in the community.

"I sincerely thank Hoshi, a donation angel who does not forget the community and spreads good influence through various methods and continuous donations," said Choi Dae-jip, head of the Hwado Sudong Administrative Welfare Center, who delivered a plaque of appreciation on behalf of Namyangju Mayor Cho Kwang-han.