Robert Pattinson's Sister Lizzy Pattinson 'X-Factor' Audition- 'Twilight' Star's Sister Belts Out Song For Simon Cowell, Mel B & Cheryl Cole

She isn't a household name just yet, but Lizzy Pattinson is about to be. The 31-year-old X Factor hopeful showed up to the auditions not revealing the fact that she had a famous brother in Twilight hunk Robert Pattinson, but it wasn't long before people all over the internet began making the connection.

X Factor judge Simon Cowell even noticed the resemblance during the audition process, commenting that Lizzy looked familiar and even questioning her on whether or not they had met before.

When asked where he knew her from, the feisty blonde replied, "Maybe from your dreams." We can tell we are already going to like her.

It seems that the 31-year-old wants to make it on her own without her brother's name being attached to her. A source explained to Now magazine why she choose to keep her family lineage private.

"She didn't mention she was related to him to any judges or producers," the insider revealed. "It's important to her she does not fall into the trap of just becoming 'Rob's sister'."

The receptionist turned personal assistant belted out Bonnie Raitt's "Feels Like Home" which gave her four yeses from the judges including Mel B, Cheryl Cole and Louis Walsh.

Before she could leave, Cowell questions her once again asking, "And we haven't met before?" To which Lizzy replies, "No we haven't, but we're gonna meet again."

Watch the performance in the YouTube clip above.

[Image courtesy of YouTube]