Oh, undoubtedly. When I make lemonade, it's considerably heavier on the lemon than most people like it, & I often add a dollop of white grapefruit juice (which I can't stand on its own) for extra zing. Then, too, after making up the juice + simple syrup mixture, I'm apt to make it up with soda water, which adds its own acidity.

When I was in Germany this spring, the beverage I got in a döner place one day was the Legendary Uludağ Gazoz. I guess it's one of those specialities like "Lemon & Paeroa".