bandwagon

noun /ˈbandˌwagən/ 
bandwagons, plural

1. A wagon used for carrying a band in a parade or procession
2. A particular activity or cause that has suddenly become fashionable or popular
3. In realist theories of international relations, bandwagoning refers to the act of weaker states joining a stronger power or coalition within balance of power politics.
4. i'm not a bandwagon-er but inadvertently all my old posts got side raped in a purple van due to the excessive innuendo-cy of it all :D
5. All Jimmy Chens, George Lis and Vee