Jump on the bandwagon 又是什么呀？

jump on the bandwagon 

赶浪头、赶时髦、跟风、一窝蜂去做某事

Mr.Wong has finally jumped on the bandwagon and set up an official WeChat account. 

Mr.Wong终于顺应潮流，建立了一个微信公众号。

After the incredible success of Coca-Cola's Diet Coke, Pepsi has jumped on the bandwagon, and released a diet version of Pepsi - Diet Pepsi.

自从可口可乐公司的「健怡可乐」获得巨大成功后，百事可乐也顺势推出了「百事」的「低糖」版 - 「轻怡百事可乐」。

a bandwagon 

a bandwagon