Question: Who is  famous for being the lead singer and bassist of the band Level 42, Mark King or Yoon Chae-kyung?

Context paragraphs:
Starchild (song): "Starchild" is a song written by Wally Badarou, Mark King and Phil Gould.  It was released in 1981 as part of the British pop band Level 42's debut studio album.  The song was released as single in the same year.  It peaked at #57 on the UK Singles Chart and entered the American Club Play Singles chart at #60.  It was Level 42's fifth single and was the band's first song to enter the Club Play Singles.

To Be with You Again: "To Be With You Again" is a 1987 single by British band Level 42, from their album "Running in the Family".  The song was written by Mark King and Boon Gould, and was released as a single in other countries such as Australia, Germany, Italy, the Netherlands and others by the record label Polydor.

Something About You (Level 42 song): "Something About You" is a single released by British band Level 42 in 1985, in advance of its inclusion on the album "World Machine" the same year.  The song was written by Mark King, Mike Lindup, Phil Gould, Boon Gould, and Wally Badarou.

Retroglide (album): Retroglide (released 18 September 2006) is a studio album by the British rock/pop/fusion group Level 42.  It was released 12 years after their previous album and reached the UK Top 80.  It is a mix of electronica with Level 42's traditional blend of funk and pop.  The album is notable for featuring songs written by Boon Gould, the band's original guitarist (whose guitar is featured on "Ship") and bassist/vocalist Mark King.

Mark King (musician): Mark King (born 20 October 1958) is an English musician.  He is most famous for being the lead singer and bassist of the band Level 42.  King is known for his slap style of playing the bass guitar, with MusicRadar describing him as "the guy who put the slap in pop during the 80s".  He won the "Outer Limits" award at the 2017 Progressive Music Awards.

One Man (Mark King album): One Man is a studio album released in 1998 by the singer and song-writer Mark King, bassist and vocalist of the British musical group Level 42.  The album includes songs co-written by Level 42's former guitarist, Boon Gould.

Tracie (song): "Tracie" is a song by British band Level 42, written by Gary Husband and Mark King, and recounts King's times with his childhood sweetheart, Tracie Wilson.  It appeared on the band's 1988 album "Staring at the Sun", and features keyboardist Mike Lindup playing harmonica.

Yoon Chae-kyung: Yoon Chae-kyung (born July 7, 1996), is a South Korean singer and actress.  She originally debuted in 2012 as a member of Japan-based South Korean girl-group Puretty under DSP Media.  She is also known as a contestant of "Kara Project" (2014) and "Produce 101" (2016).

Two Hearts Collide: "Two Hearts Collide" is a pop/romantic song released in 1988, in the studio album "Staring at the Sun", by the British musical group Level 42.  It was written by Mark King and Boon Gould, that had already abandoned the band.  It was not well received by critics in the beginning, as almost all of the music of the album "Staring at the Sun", in spite of this, was well received by the fans of the band.  This song is in the compilation released in 1998 "Turn It On".  The lead vocals are by Mark King.

Phil Gould (musician): Philip Gabriel "Phil" Gould (born 28 February 1957) is a British drummer, song writer, and singer from the Isle of Wight in southern England.  He founded the band Level 42 with Mark King.

Supporting paragraphs: Mark King (musician) Yoon Chae-kyung
Answer: Mark King