Conversation so far:
What did Snoop Dogg do in 1998 ?
Snoop Dogg signed with Master P's No Limit Records in March 1998
What else did Snoop Dogg  do in 1998 besides signing with Master P's No Limit Records in March 1998?
Snoop Dogg also debuted on the label with Da Game Is to Be Sold, Not to Be Told later that year.
Did Snoop Dogg released any album in 2006 ?
Snoop Dogg's 2006 album Tha Blue Carpet Treatment debuted on the Billboard 200 at No.5 and sold over 850,000 copies.
Was Tha Blue Carpet Treatment the only Snoop Dogg album for 2006?
Snoop Dogg appeared on two tracks from Ice Cube's 2006 album Laugh Now, Cry Later, including Go to Church, and on several tracks on Tha Dogg Pound's Cali Iz Active

Question: Did he make any appearances in 1999 ?
Self-contained rewrite: Did Snoop Dogg make any appearances in 1999 ?