Q: Name some things seen at a baseball game. This is a two-word phrase, four letters in each word. Change one letter in each word to a new letter to get a new two-word phrase that names a popular music group of the past. Name the group.For some reason, I'm thinking of tulips.
Edit: "of tulips" anagrams to foul tips
A: FOUL TIPS -> FOUR TOPS
(alternatively, some have suggested "foul pops" as the baseball phrase.)