march to a different drummer

/M AA1 R CH T UW0 AH0 D IH0 F ER0 AH0 N T D R AH0 M ER0/
verb
  1. 1

    To do things in one's own way regardless of societal norms and conventional expectations.

Source: https://en.wiktionary.org/wiki/march%20to%20a%20different%20drummer, https://en.wiktionary.org/wiki/march%20to%20the%20beat%20of%20a%20different%20drum