I have always liked Three Days Grace.

You're not going to get shredding craziness like Dimebag Darrell or Eddie Van Halen, but you will get some cool head-banging riffs from guitarist Barry Stock.

With its upcoming album Human featuring new lead vocalist Matt Walst, the guys are touring pretty hard core.

Check out this full concert performance of the guys performing in Brazil!

Matt Walst, I will admit, has really grown into the lead vocalist spot of Three Days Grace.

If you have been living under a rock, you wouldn't have known that previous vocalist Adam Gontier left the group randomly to pursue other interest. Which was then replaced by My Darkest Days vocalist Matt Walst, which is also the brother of Three Days Grace guitarist Brad Walst.

In their performance in Brazil, they even do a few quick covers from Limp Bizkit and Marilyn Manson.

Check out the latest interview with bassist Brad Walst with GRD's Johnnie Walker.

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