Cha Cha Cha Cha
There are three artists with this name: an '80s Japanese band and one who had a minor hit back in 1999 with "New Millenium (What Cha Wanna Do)", and currently active, a singer based in Shanghai who is part of the 'Uprooted Sunshine' reggae soundsystem.
ChaCha, from Guizhou, China is based in Shanghai, where she hosts her own trip hop and abstract hiphop night Karma Koma at The Shelter, and has been a member of the reggae sound-system 'Uprooted Sunshine' for over 5 years.

Read more about Cha Cha on Last.fm.