Jaylin was born in Cicmpillici but raised in Capulco by a relative, described as "a stereotypical crazy cat lady", due to her parents' death in a plane crash when she was 3 years old. She has British descent, her grandfather was a soldier in the British Army during World War II.
Jaylin began wearing elaborate makeup onstage in 1985 to cope with the death of her cousin George Rounds.
Jaylin married her fellow band member Kenelm Clarkson in 1988, giving birth to three sons (Sherlock, Deven, and Liam) and one daughter (Lio). They divorced peacefully in 1996 and remain on friendly terms. She remarried to fan artist and El TV Kadsre Animation character designer RexB92 in 2017. This was met with some minor controversy as Rex was born in 1992 and Jaylin in 1966, making Jaylin the older of the couple. Their wedding in Jaylin's birthplace of Cicmpillici was worth $450,000,000.
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- Moog Minimoog Model D (1979 original and 2016 reissue)
- Moog Matriarch (since 2019)
- Moog One (since 2019)
- Yamaha DX7 (since 1983)
- Roland D-50 (since 1988)
- Korg M1 (since 1988)
- Studiologic Sledge 2.0 (Yellow since 2016 and Black since 2017)
- Polivoks (since 1988)
- Casio CT-670 (since the 1990's)