OMG! Photo of bruised girl who says Demi Lovato attacked her

Sept. 29, 2010 - Hollywood, California, U.S. - Arcade Boutique's ''The Autumn Party'' benefitting Children's Institute at The London West Hollywood Hotel in West Hollywood, CA 09/29/10  2010..DEMI LOVATO.K66033SK. © Red Carpet Pictures

Check out this photo of the girl who claims that Demi Lovato attacked her.

TMZ reported that Demi left one hell of a mark when she punched a female backup dancer in the face on a private jet back in October, while on tour with the Jonas Brothers.

Alex Welch is reportedly considering her legal options over the incident that was so severe she had to seek emergency medical treatment.

In the photo Alex is seen with visible bruises on her left eye and cheek.

A source close to Alex Welch told TMZ that the dancer was keeping to herself when Demi, “walked up to [her] and with a closed fist, struck her on the left side of her face.”

It is said that Demi was then removed from the plane and sent him, checking into rehab shortly afterwards.

Click here to see the photo taken days after the reported attack.

Ouch!