Does anyone know who Sai or Sia is?

[lauriesmyname]

I saw her on David Letterman a week or so ago. She is Deaf but sings and signs her music. She had her hands colored purple and green and it was awesome to see. I couldn't understand all the words, but the signing really helped me get a pretty good idea about the words.

 

[JennyB]

[ame=http://www.youtube.com/watch?v=AHDHoyhm2QQ]YouTube - Sia - Soon We'll Be Found (David Letterman)[/ame]