Translation of "Zz'" in Japanese

I had a nagging feeling that the atmosphere resembled somebody and, now that you mention it, yes, you're right. Certainly ZZ TOP had this kind of feel.

なんか誰かに雰囲気似てるなあと思ってましたが、言われてみてああそうそうですね。確かにZZ TOPってこういう感じでしたよね。