God I love the Black Keys. I don’t know how it occurred to me, but had they been hot in the ’90s they could’ve sold a million “Got Keys?” shirts.

I knew the Black Keys were relatively popular for an “underground” band, but I didn’t realize how popular. You would’ve thought they were the only band playing at the time when thousands showed up at the North Stage to see them (many showing up well over an hour early to secure a good spot). Oddly, there was a sign-language interpreter during their set. Not to be rude, but if you’re deaf why would you come here? Anyway, she was rockin’ some air bass, which is ironic considering the Black Keys are only a guitar-and-drum duo, hence no bass.

I would’ve never thought two grungy white guys could channel Jimi Hendrix so well into modern-day music. I highly suggest that Harmonix make a Black Keys track pack for “Rock Band” — the bassist can just drink a beer in the meantime. Also, Patrick rocked out on the drums with a freakin’ tambourine, which I’ve never witnessed by any other band.

The banter was limited from the duo, but they did note that they were neighbors with Chicago since they are from Ohio, and proclaimed, “I’ve never been in a mosh pit before. I think I would get f—ed-up in a mosh pit.” This was my first time to see the Black Keys, because they always somehow manage to come to my town when I have anything from a friend’s b-day to go to or even a graduation to go to.

It was a very intense performance and had the strength of a bigger group than just a duo. Also, the sound was top notch, a rarity among festivals. They wowed the crowd with old tunes and a good amount of the Danger Mouse-produced Attack & Release.

Duffy was also a pleasant surprise. I don’t know her material very well, but I do know “Mercy” and a few other tunes, and let me tell you — she might be a second-string Amy Winehouse, but not live. She can show up Amy Winehouse in concert any day of the week. Maybe Duffy just needs a little Mark Ronson magic. Next up are Radiohead and a recap when the night is over with.

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