Justin Bieber Fans Revolt Against Mariah Yeater

A mob of furious Beliebers are coming out full force against Mariah Yeater.

Justin Bieber's alleged baby mama has riled superfans by making allegations in a paternity lawsuit that the squeaky-clean teen dream got her pregnant backstage at L.A.'s Staples Center. (He denies everything.)

Now she's a Twitter trending topic and the target of the hashtags #WEBELIEVEJUSTIN AND #ShutUpMariahYeater.

"That #MariahYeater has some balls," wrote one angry tweeter. "[Sic] Its a shame what people do to get their 5 minutes of fame."

(Remember the Twitter explosion after Esmeralda Spalding won the "Best New Artist" Grammy over Bieber? It all seems so quaint now.)

Follow The Famous on Twitter!