Who is this famous spanish singer/actress that was in a movie?? she's young...?

okay I remember seeing this one spanish movie where there was a girl and she was singing, and that's all I remember, and she has a lot of songs and she started singing at an young age. Now she's on this spanish kid show with these little puppet things that look like they belong to sesame street. I thought her name was marisol but I guess not but idk does anyone know what I'm talking about?? oh and she had this one song that was like asi que muerte or something like that it was saying that she would rather be dead than not a girl or I think that's what she was saying lol HELP