Examples of using "ああ、そうそう!" in a sentence and their english translations:
Oh, yes, I remember.
Ah, now I remember. I used a condom; something I rarely, or rather practically never, do.
Oh, while I remember, it seems that that was a bug that occurs when you use the comment field's 'letter-spacing' tag which adjusts the tracking.
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.