MC Mong (Hangul: MC 몽) (September 4, 1979) is a South Korean hip hop artist who is known for his comic disposition and his upbeat songs. He graduated from Dong-Ah Broadcasting College. MC Mong has collaborated with many well-known artists, including Kim Tae Woo from G.o.d., Ock Ju-hyun, Ivy, Crown J, Lena Park, Park Hyo Shin, SG Wannabe and Jo Sungmo. He was a member of KBS2's 1 Night 2 Days (1박 2일), a part of the network's Happy Sunday line-up. MC Mong released his fifth album, Humanimal in July 2009 after 1 year and 3 months. Allegations of military draft dodging resulted in a criminal investigation in late 2010.

MC Mong first debuted as a member of hip hop band People Crew, which debuted in 1998. Because he was overshadowed by other members in his group, he was not noticed until 2003, when he acted in MBC's Non-Stop 4. In 2004, he started his solo career debuting with the single "180°". He gained much more attention with the release of his third album, The Way I Am with the first single off this album "Ice Cream" ("아이스크림"). His albums are known mostly for their comedic styles (aided by humorous music videos), although his third album, The Way I Am has taken on a slightly more serious tone. His nickname is "monkey", due to his resemblance to the animal; most Korean variety shows reference this. On a fall of 2006 episode of SBS's Ya Shim Man Man, he and his good friend Haha talked about their struggles when they were first trying to break into the industry. His parents had fought with him, telling him that he should not try to become an entertainer.

Seo In-Young (Hangul: 서인영; Hanja: 徐寅永; born on September 3, 1984), also known as Elly, is a South Korean singer, dancer, model, TV host, and actress. She is most famously known for being a member of K-pop group Jewelry and being on the reality TV show "We Got Married" with Crown J as her "husband".

She released her solo album entitled Elly Is So Hot (the name "Elly" is a nickname that Seo created for herself) on February 26, 2007. Known as the sexy dancer in the group, she has stated that she wanted to move away from her strong dance image and become a softer, elegant, more sensual entertainer.

The first single from the album was "Neoreul Wonhae" ("너를 원해", "I Want You"), which was written, composed, and produced by Jung Yeon-joon, from Uptown. Originally a mix of Latin and R&B styles, the song was promoted with a dance remix near the end of her promotional tour.

It was announced that In Young would be releasing her second solo album titled Elly Is Cinderella on July 23, 2008, with the lead single "Cinderella" composed by PSY. Her album was released on July 23, 2008.

Lee Seung Gi (Hangul: 이승기, Hanja: 李昇基) was born on 13 January 1987. He is a South Korean singer, actor and MC. He is well known as the MC for television programme Strong Heart, from 2009 to March 2012.

Scouted by singer Lee Sun Hee, Lee Seung Gi trained for 2 years before debuting on 5 June 2004 at the age of 17. "Because You're My Girl", his debut song from his first album The Dream Of A Moth, was a ballad which created "liking older women" syndrome in South Korea. With this song, he won the 'Best Newcomer award in various music awards ceremonies in 2004 (such as M.net KM Music Festival, SBS Music Awards and MBC Best 10 Singers Music Festival). In 2007, he also won the "Best Male Solo Artist" award in the M.net KM Music Festival with his song "White Lie" from his third album Story Of Separation.

Lee Seung Gi released a digital single Will You Marry Me in 2009. With this single, he received the "Digital Single Bonsang" award in the 24th Golden Disk Awards. In 2010, he recorded a duet version of his 2007 song Smile Boy with South Korean figure skater Kim Yuna, and the song was the official 2010 FIFA World Cup commercial song in South Korea. He also received the "Digital Single Bonsang" award for the second consecutive time in the 25th Golden Disk Awards with his song "Love Taught Me To Drink".