Seo Hye-lin (Hangul: 서혜린; born August 23, 1993),[1] referred to as Hyelin, is a South Korean singer.

In 2011, she participated in Mnet's Superstar K3, making it through the auditions to "SuperWeek".

[citation needed] In April 2012, AB Entertainment announced that the three original members Yuji, Dami and Na Hae-ryung would leave EXID.

[citation needed] On January 15, 2020, Hyelin terminated her contract with Banana Culture and left the agency.

[5] On May 6, 2021, Hyelin made her solo debut with the digital single "Lonely".