Who is more of an independent artist, Pop Evil or Imogen Heap?
Imogen Heap:  Heap signed to independent record label Almo Sounds at the age of 18 and later began working with experimental pop band Acacia, alongside Guy Sigsworth, as a frequent guest vocalist. Pop Evil:  Later, guitarist Tony Greve was added as a temporary studio musician for the band but was invited to become a full-time member in early 2007.
i don't know