Original: The name was changed to Sugar Corn Pops in 1978, and then to "Corn Pops" in the 1980s, a time when many cereals dropped the word "Sugar" from their titles. In January 2006, the name of the cereal was changed to Pops, but after a few months of poor reception, was changed back to Corn Pops.
Simplified: It was originally called Sugar Pops in 1951, and then changed Sugar Corn Pops, and then to "Corn Pops" and in January of 2006 the name of the cereal was changed to Pops, only to be changed back to Corn Pops several months later.