Conversation so far:
What album had the best sales?
His tenth studio album, Malice n Wonderland.
Did he tour with that album release?
CANNOTANSWER.
Are there any other interesting aspects about this article?
Snoop collaborated with Katy Perry on "California Gurls".

Question: Who else did he collaborate with?
Self-contained rewrite: Besides Katy Perry, who else did Snoop Dogg collaborate with?