I am starting an all girls singing group with 2 other girls. we need a name that is young and mature sounding?

I am starting an all girls singing group with 2 other girls that are 13 years old. We can't seem to think of a name for ourselves. We want something young and fresh but at the same time, something that says we're mature. Help plz????!!!

Ripchord!!!
or Pure?

okay here are my top picks
1.) Climax
2.) Twilight
3.) ostentatious
4.) Astray
5.) Catechism
6.) Caucus
7.) Bequeathed
8.) Disarray

precocious