First time I saw they on B channel in my tv. I like her sound, and then I searched they on Youtube, I watch Rolling In The Deep (Cover), and amazing!! About 100 million views and included me ;) From 3 till 5 times I watch that video, I like them and especially I like their drummer. They consist of Angela(Vocalist), Abelardo(Guitarist, Pianist and Bass player), and the last Gustavo(Drummer). They are all siblings, from Vazquez Family.
You have to watch this, AWESOME !