Aly Michalka - singer, musician, actress, and one half of the sisterly musical duo known as 78violet.
Japanese entertainer Erina Mano. Got her start with the Hello!Project as a J-Pop singer and pianist; more recently, she's became an actress in a number of Japanese movies and TV shows.
Ariel Tweto: reality-TV starlet, and one of the cutest Eskimo girls around!
Dia Frampton. Half of the Indie-pop sister group Meg & Dia, and runner-up on season 1 of 'The Voice'.
Guitar girl Jacqueline Mannering. (and yes, she IS over 18; she's older than she looks :p )
Internet blogger Brigitte Dale.
Voice actress and cosplayer Kira Buckland, aka 'Rina-chan'. (I had a HECK of a time trying to find a good Pinterest-friendly pic of her...I decided on this one from her Tumblr page, where she's in her Pony persona of Colgate...) #RinaChan
pro-gamer Katherine 'Mystik' Gunn
British TV hostess Mel Peachey. Man, how I miss the days that she hosted PlayMania in the States!