Björn Daniel Arne Yttling (born October 16, 1974 in Umeå, Sweden) is a Swedish music producer, songwriter, and musician.
 His production and songwriting credits include Lykke Li, Chrissie Hynde, Primal Scream, Franz Ferdinand, Sahara Hotnights, Anna Ternheim.
 Yttling is the bassist of the indie rock trio Peter Bjorn and John.
 He is also a co-founder of the label and artist collective INGRID and a member of the band LIV.
Sahara Hotnights is an all-female rock band from Robertsfors, Sweden.
 Their style incorporates elements of garage rock, power pop and punk.
Frida Hyvönen (born Anna Frida Amanda Hyvönen; 30 December 1977) is a Swedish singer-songwriter.
 She grew up in Robertsfors, a small place just outside Umeå in the north of Sweden (which is also the hometown of the band "Sahara Hotnights"), and is currently based in Flarken, Sweden.
Sator is a Swedish rock band.
 The band was founded in Borlänge as Sator Codex in 1981.
 Sator Codex released one album, "Wanna Start A Fire?"
 and three singles before shortening their name in 1987 and continuing without their previous lead singer Björn Clarin and changing their sound.
 Chips Kiesbye is also a successful producer and has worked with The Hellacopters, Sahara Hotnights, Millencolin and several other rock bands.
Chips Kiesbye is the guitarist and vocalist for the Swedish rock band Sator formed in the late 1980s in Borlänge.
 Kiesbye is also successful music producer and has worked with several of Sweden's most successful rock bands and artists such as The Hellacopters, Millencolin, Thåström, Sahara Hotnights, Wilmer X, Turbo and many others.
Kiss & Tell is the third studio album by the Swedish rock band Sahara Hotnights, and was released on a major label.
Jennie Bomb is the second album from the all-girl Swedish rock band, Sahara Hotnights.
 It was released in 2001 (2002 in the USA).
 The album is named after band member Jennie Asplund.
Blood Circus was an early, short-lived grunge band from Seattle, Washington.
Suits Anyone Fine is an EP by the Swedish rock band Sahara Hotnights released in May 1997.
Sparks is the fifth studio album by Swedish band Sahara Hotnights, released on 25 February 2009 through their own record company Stand By Your Band.
 The album consists of covers of songs by artists such as Foo Fighters, Cass McCombs, Dusty Springfield, and Aneka.
 The first single, "In Private", has already charted in Sweden.

Question: Which rock band is from Sweden, Blood Circus or Sahara Hotnights?
Answer: Sahara Hotnights