Lead-in
A lead-in is a short phrase, usually five words or less, that starts off a photo caption in a newspaper, high school yearbook, magazine or other publication.
Lead-ins are used to catch the reader's attention and "lead in" to the main caption. These phrases widely range from common phrases to song lyrics, and are written appropriate to the subject matter of the photograph. This is separate to which makes reference to getting new business into a sales team, typically.
Examples of lead-ins include the following:
Editors and caption writers tend to avoid using clichés and obvious lead-ins ; and also prefer varying lead-ins throughout the publication.