Conversation so far:
What was he doing in the 2000s?
song "Me llaman Calle", written for the 2005 Spanish film Princesas, earned that film a Goya nomination for Best Original.
how successful was Radio Bemba?
CANNOTANSWER.

Question: what did he release first in his solo years?
Self-contained rewrite: what did Chao release first in his solo years?