jump on the bandwagon

/JH AH1 M P AA0 N DH AH0 B AE0 N D W AE0 G AH0 N/
verb
  1. 1

    To profit from a craze; to join a trend.

    โ€œAfter the incredible success of Cadbury's latest low-fat chocolate bar, Nestlรฉ has jumped on the bandwagon, and released a low-fat version of Kit Kat.โ€

Source: https://en.wiktionary.org/wiki/jump%20on%20the%20bandwagon