Earlier this month, we shared a cover of Metallica's 'Enter Sandman' performed by a group made up of three young sisters who are now aged 16, 13 and 10. They’re called The Warning and are based in Monterrey, Mexico. While the ladies have already racked up millions of views from their YouTube videos, they have a couple more things to celebrate this week. The Warning recently performed Ozzy Osbourne’s “Crazy Train” on The Ellen DeGeneres Show and locked down a recording contract with Victoria Records.

What's very cool is that The Warning had two big goals when they posted their Metallica cover: They wanted to perform on Ellen and they were hoping to raise funds to attend the Berklee School of Music summer camp. Well, one of those goals has been achieved, as seen in the video above. In addition to performing 'Crazy Train,' the three sisters also took some time to speak with Ellen.

The band has since changed their campaign, asking their supporters to get them on The Tonight Show With Jimmy Fallon. Earlier this month, the band also announced on Facebook that they have been signed by the Latin America label Victoria Records.

While these girls’ careers are just beginning, a big chapter of Ozzy Osbourne’s career will come to a close. At a press conference in Brazil this week, the singer said that Black Sabbath will release their final record and do their final tour next year. Osbourne also commented on Tony Iommi's health, saying the musician is doing great and has been sounding fine. The guitarist has previously battled lymphoma, but as of three weeks ago has said he is still in remission and is feeling great.

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