on the bandwagon, get
Also, climb or hop or jump on the bandwagon. Join a cause or movement, as in More and more people are getting on the bandwagon to denounce cigarette smoking. This expression alludes to a horse-drawn wagon carrying a brass band, used to accompany candidates on campaign tours in the second half of the 1800s. By about 1900 it was extended to supporting a campaign or other cause.
Words nearby on the bandwagon, get
on tenterhooks, on the air, on the alert, on the average, on the ball, be, on the bandwagon, get, on the barrel, on the beam, on the bench, on the blink, on the block
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.