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"Mama's Pearl" (Originally “Guess Who’s Making Whoopee”)
Date range for “Guess Who’s Making Whoopee” and “Mama’s Pearl” assessed by Jackson5ABC forum user “jaorecords”’ analysis (archived), where he estimated to the best of his ability, based on how MJ's vocal sounds in relation to other songs, other tracks’ confirmed recording dates, and the producers working on the tracks at the time, the recording dates for tracks where a recording date has not yet been publicly released. Date will be updated if more official information comes to light. This date range also falls within the recording date range confirmed in the “Come and Get It: The Rare Pearls” album liner notes for “Guess Who’s Making Whoopee” (archived) (“Recorded Summer-Fall 1970”)
"Mama's Pearl" (From the “Third Album”):
“Guess Who’s Making Whoopee” (“Mama’s Pearl” demo): (From the “Come and Get It: The Rare Pearls” album):