Jee Seok-jin

In 2019, Running Man held their first ever fan meeting in Seoul, South Korea. Jee collaborated with Apink and fellow Running Man member Lee Kwang-soo presented their own song titled PARTY in which they danced and sang together. Jee also sang a group song with all Running Man members titled I Like It (좋아) and danced to 1 Million's Lia Kim's choreography for the song BOOM and Just Blow.

In 2017, Jee released a Chinese-language duet "You're the Most Precious" (你最珍贵) with Hong Kong singer Bianca Wu (zh). Wu had invited him to record a newly arranged jazz rendition of the 1998 classic hit duet originally performed by Jacky Cheung and Francesca Kao, and also to film the MV in Hong Kong. They were then invited to perform the song at Hong Kong's TVB annual charity gala show.

Jee met his wife through an introduction from Yoo Jae-seok. Jee and his wife celebrated their 20th wedding anniversary in January 2017. Their "second wedding" was aired on Running Man in a special episode called "Big Nose Week" (alluding to Jee's nickname on the show). They have a son, who made a rare appearance on a Running Man episode in 2015.

In September 2016, Jee Seok-jin started hosting on MBC Radio FM4U as a DJ. His radio programme 2시의데이트 지석진입니다 (2PM Date) is broadcast daily, from 2pm to 4pm.

In 2015, he sang 머리핀 (Hairpin) for the OST of drama Romance for 7 Days, a collaboration drama between Korea's CMB and Hong Kong's TVB. Jee Seok-jin released this song in both Korean and Chinese versions, the Chinese version being called 发卡 which is very well received in Mandarin-speaking regions, reaching the 6th position on the Chinese Baidu music charts.

Also, Jee Seok-jin has been known for his rendition of the Chinese song 童话 (Fairy Tale). It was first performed at the Running Man Special Live in Taipei fan meeting in January 2015, which garnered many positive responses about his accurate Mandarin pronunciation and melodious vocals. The original singer of the song, Michael Wong, also known as 光良 (Guang Liang), also praised Jee Seok-jin for his rendition. Wong subsequently invited Jee Seok-jin to be the performing guest for his Taipei concert in May 2015, where they performed 童话 (Fairy Tale) together.

In 2014, he sang a duet '사랑한다 말하는건' (Saying I Love You) with Club Soul, for the KBS drama My Dear Cat's OST.

In 1992, Jee Seok-jin debuted as a singer, releasing his first album "I Know", but gained popularity as an MC and comedian in the entertainment industry. He was most commonly known as the main MC in Star Golden Bell, which aired from 2004 to 2010. Jee is most well known as a cast member in the variety show Running Man together with Yoo Jae-suk, Kim Jong-kook, Haha, Song Ji-hyo, Lee Kwang-soo, Jeon So-min and Yang Se-chan. In addition to his television career, he also hosts the afternoon radio show 2 O'Clock Date on MBC FM4U.