who is Ester Dean?!

who is this chick? ive never heard of her before. she just kinda came outta nowhere...kinda like DRIZZY! lol but the song is pretty dope. dancin is on point. i see C-Breezy is tryin to make his comeback. on some bobby-whitney type stuff. lol. anyway this song is featured on Lebron's movie soundtrack. check it ooooooouuuuutttt.