dancing to a new tune

Verb

dance to a new tune (third-person singular simple present dances to a new tune, present participle dancing to a new tune, simple past and past participle danced to a new tune)

1. To significantly change one's opinion, attitude, or behavior.
   • Policy was to be bold, not timid; campaign promises were to be carried out, not cynically shelved; and the public service would dance to a new tune, one where the ministers called the tune.1991, J. L. Granatstein, Robert Bothwell, Pirouette: Pierre Trudeau and Canadian Foreign Policy, →ISBN, page 207
2. Used other than figuratively or idiomatically: see dance, new, tune.