Michelle Obama tweeted her own portrait holding a sign reading #BringBackOurGirls and soon countless celebrities echoed this meme online. Throughout a week, this trending hashtag had been turned into a social-media supernova. The #BringBackOurGirls campaign spurred by online sharing brought the outrage against Chibok schoolgirls kidnapping to the global stage.
On January 21, 2014, McDonald’s asked its customers to tweet supportive messages to the Olympians who would compete in the Sochi Games, along with the hashtag #CheersToSochi. However, within a couple of days, LGBT activists essentially hijacked the hasthtag from McDonalds.