Yup. The US is a little different to the rest of the world... they don't fizz their lemonade. If you're an Aussie or Pom and expect a clear fizzy lemonade, you'll need to ask for a Sprite or 7-Up. Walking into a bar in the US and asking for a lemon, lime and bitters and trying to explain the ingredients is just not recommended unless you have the patience of a saint.