NEW YORK (AP) — What defines the ultimate song of summer? Is it an upbeat pop anthem? A track with a hook that refuses to leave your head? Does it need sunny buzzwords like “sunshine,” “summer,” or even “California” slipped into the lyrics? And let’s be honest — is it even possible to follow in the footsteps of Brian Wilson and his masterful summer hits? The truth is, determining the song of the summer is often up to individual taste — or ears, in this case. But The Associated Press considers