One of the most popular Jennifer Lopez shows of 2019 was Friday July 19th at Prudential Center. Interest for that show peaked in the days leading up to the event and ticket prices declined during that time.
Across all Jennifer Lopez shows in 2019, interest was strongest right when the shows were announced and tickets went on sale. Meanwhile, ticket prices typically fell about 30 - 35% from the date a show was announced until the days leading up to the show.