Helen Lindsay Marnie is a Scottish musician, known as the lead vocalist and one of the keyboardists and songwriters of the electronic band Ladytron. In 2012, she started a solo career as Marnie and released her debut solo album Crystal World on 11 June 2013. Her second solo album, Strange Words and Weird Wars, was released on 2 June 2017.

Ladytron is an English electronic band formed in Liverpool in 1999. The group consists of Scottish lead singer Helen Marnie, Mira Aroyo, and Daniel Hunt. Reuben Wu (synthesizers) was a member from 1999 until 2023. They have released seven studio albums: 604 (2001), Light & Magic (2002), Witching Hour (2005), Velocifero (2008), Gravity the Seducer (2011), Ladytron (2019) and Time's Arrow (2023). They also issued the live album Live at London Astoria 16.07.08 in 2009 and the compilation album Best of 00–10 in 2011. They have produced remixes for artists such as Dave Gahan, Erasure, Goldfrapp, Apoptygma Berzerk, Placebo, Blondie, Gang of Four, Christina Aguilera, Nine Inch Nails, Bloc Party, Kings of Convenience, Soulwax and Róisín Murphy.