The 'Victorious' star broke down in tears while posing for the paparazzi at the Grammy Awards and Yahoo says it's all because she tripped.

Yahoo hinges on an onlooker who reportedly took to Twitter to explain why the teen star burst into tears on the red carpet.

"I first hand watched what happened, Ariana was happy and she went with the best confidence on the red carpet. She was doing good at first. The paps yelled really loud all wanting her to look at them. She can't listen to all of them at once and they kept ordering her around," Yahoo quotes an unnamed Twitter user.

Yahoo's Twitter source adds, "She made one mistake by moving left a bit too quick and when she tried to move back she tripped. Eventually she got flustered and upset."

On the other hand, E! Online says that "Cat" was stressed out with a blogger who nagged about her looks on Twitter.

"This blogger attacked her dress but also went after her hair and then more people started piling on. It was just mean. Ariana was like, 'Why am I even here?'" E! Online quotes an unnamed Twitter user.

The Nickelodeon star was slammed online for wearing hair extensions and donning the same look over and over again. Ariana has since addressed haters in an Instagram post that explained why she has to wear hair extensions.

It turns out that constant bleaching and dying for four consecutive years on 'Victorious' have taken toll on her locks, leaving them "so broken" and looking "absolutely ratchet and absurd" when let down, the actress explained in the Instagram post. "I now wear a wig on 'Sam and Cat,'" she added.

But the TV star seems to have gotten over her tear-jerking moment on the red carpet as a recent tweet confirms that "Arianators" are now 13 million-strong.

"13 milllllion. thank u for supporting me thru good times & bad. my love is yours forever. blessed to have U in my life #thankyouloves," @ArianaGrande tweeted.