The 2005 single "I Know" marked a shift towards a more dance-oriented sound for Vanilla Ninja. It was released on Bros Music in Germany, Austria, and Switzerland.
- "I Know" was released as a single in February 2005. It was part of the promotional cycle for their album "Blue Tattoo." The song was a moderate success in the German-speaking countries.
- The single featured a prominent dance-pop beat and electronic elements, differing from some of their earlier rock-influenced tracks. It was produced by Hendrik Eismann and Kay Ulm.
- "I Know" was co-written by the band members themselves, alongside producers Eismann and Ulm. It aimed to capitalize on the burgeoning dance-pop trends in the European charts at the time.
Vanilla Ninja was an Estonian girl group formed in 2002. They gained popularity in Central Europe with their brand of pop and dance-pop music.
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