Conversation so far:
What was Ego Trippin' by Snoop Dogg?
Ego Trippin’ is Snoop Dogg's ninth studio album,
When was Ego Trippin' by Snoop Dogg released?
Ego Trippin’ by Snoop Dogg was released on March 11, 2008
What did Snoop Dogg do in 2007?
In July 2007, Snoop Dogg made history by becoming the first artist to release a track as a ringtone before its release

Question: What track was released as a ringtone?
Self-contained rewrite: What track by Snoop Dogg was released as a ringtone?