| OSN | |
| Birth Name: | Kao Erh-hsuan |
| Birth Date: | 14 June 1997 |
| Birth Place: | Taipei, Taiwan[1] |
| Genre: | Taiwanese hip hop |
| Years Active: | 2018–present |
| Label: | SKR Presents |
Kao Erh-hsuan (Chinese: t=高爾宣|p=Gāo Ěrxuān; born June 14, 1997), better known by his stage name OSN, is a Taiwanese rapper and singer. Gao's music is characterized by his sentimental hip hop style and use of both Mandarin and English lyrics.[2] Gao is represented by SKR Presents, a record label by music producer .
Gao was born in Muzha, Taipei on June 14, 1997.[3] His father is a professor at Xiamen University, and his mother is a junior high school teacher.[4] He briefly attended a community college in the United States, but returned to Taiwan in a year and a half.[5]
After serving his four-month mandatory military service, Gao met Skot Suyama, who helped produce his future songs. In 2018, Gao debuted with first song, "Everybody Bounce".[6] His 2019 song, "Without You", was a viral hit in Taiwan and was nominated for Song of the Year at the 31st Golden Melody Awards.[7] [8] [9] On April 30, 2019, Gao released his debut album titled
.[10] That same year, he won the Best New Asian Artist Mandarin award at the Mnet Asian Music Awards.[11]
Besides his solo career, in 2018, Gao formed the rap group Ching G Squad with three other rappers: Shou, Red, and ChrisFlow. The group released their first extended play, Watermelon, on September 20, 2019.[12]
| 2019 | Mnet Asian Music Awards | Best New Asian Artist Mandarin | |||
| 2020 | 31st Golden Melody Awards | Song of the Year | "Without You" | ||
| Best New Vocal |