Watch out Metallica! Girls' "Enter Sandman" cover goes viral

MONTERREY, Mexico -- Fifteen-year-old Daniela, 13-year-old Paulina and 10-year-old Alejandra call themselves The Warning and their cover of Metallica's hit, "Enter Sandman," has gone viral.

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Daniela's voice doesn't the same edge as Metallica's lead vocalist, James Hetfield, but she delivers a very impressive guitar solo. The other two girls are flawless on their instruments.

The girls are trying to raise money to attend a summer program at the Berklee College of Music in Boston.

If you love their sound and want to help, visit the band's website. The site, produced by Triastrum, has interviews with the girls' and more about their music.