The 24-year old singer has done it again. This time, the other party in the online brawl is fashion model and R&B singer Teyana Taylor.

Reports say the Twitter war actually began when Rihanna mocked Taylor's Instagram video. Taylor initially posted a video of herself singing Anita Baker's "Caught Up in the Rapture."

Two weeks later, Rihanna then tweeted a video of her male hairstylist, Yusef Williams doing his own rendition of Taylor's Instagram video. In fact, Williams was reportedly wearing a curly wig and a fitted hat -- all the more making Taylor's fans suspicious that the post was darted towards her.

One particular fan wrote to the Good Music singer: "@teyanataylor rihanna coming for you on her page [sic]. She got some dude with a weave singing caught up in the rapture."

Taylor was quick to respond and blasted Rihanna on Twitter:

"I know [expletive] aint throwing sublimal's dat sh-t for punks [sic.] If they gone come at me @ my name. A [expletive] can play with everybody else but don't play with me. Thank you."

"Don't play wit me @rihanna [expletive] all this industry [expletive], YOU & I know each other VERY well. Throwing subs 4 wat? u got my #, don't show off," Taylor tweeted.

"y'all could bully everybody else & get away wit that [expletive] but that [expletive] ain't gone work ova here. so y'all could miss me with that NAVY [expletive]," she tweeted.

The Diamonds World Tour singer finally responded after several blasts and said:

"I REFUSE to help your career...you will NOT get an @ from me! Not til you pay me! #nomorefreepromo #iRefuse."

Rihanna's tweet has since been deleted although her male hairstylist's video on Instagram is still viewable. Check out Taylor's rendition of "Caught Up in the Rapture" HERE and Williams' parody HERE.