I had to Google this one:
“” “How About You” is often titled from the lyrics that occur before this, “I like New York in June.” It’s from the movie musical Babes on Broadway (1941) and has music by Burton Lane and lyrics by Ralph Freed.
The song has been recorded by Tommy Dorsey, Judy Garland and Frank Sinatra. “”
No clue why it’s in my head. You shouldn’t hear songs you don’t really even know…