Somepony please help me?

Ok so I made another OC and have no name or cutie mark for her.I was wandering if you guys could all help me i'll appreciate it.
Additional information to help.
Her dream is to be a singer but her family disproved so she moved to ponyville when she turned old enough(she's a teenager)

Her personality.
She never shuts up.She doesn't listen to others.She's really competitive and cocky.She's also really rash and even though she seems vain she does care for others.

Other information.
She can play all instruments but perfers to sing.
She likes being center of attention.
She loves to wear leather.
Her favorito as cores are red and block.

Tell me if you need mais information :)
All help is appreciated :)

Also sorry for bad image quality and the fact that you can see some of the side stuff. Sorry.