Thunder Brat is a rockstar Lalaloopsy who is awesome to everyone in Lalaloopsy Land, but she is always travelling to another place to have a concert, so normally all the other dolls living there don't see her often.
She has races with her little sister Lightning Brat, but alway loses (Admitting the fact that she runs at the speed of sound, but Lightning runs at the speed of light).
Her face is painted blue to represent a raincloud and the spots in her hair to represent how loud thunder is. Her birthday is October 10 (Sing a Rock Song Day)
Thunder is sometimes rude, but a nice person on the inside. She doesn't like it when someone bosses her and gets everything she wants.