Sometimes on my Macbook Pro when I have a lot of icons in the menu bar, if I start an application which has a lot of menu items, some of these icons get automatically obscured by the menu items.

For example, when running iTunes, the Twitter icon gets obscured...

![enter image description here](https://i.stack.imgur.com/WmXM6.png)

...but if I switch to Finder (which has a fewer menu items) the icon then re-appears

![enter image description here](https://i.stack.imgur.com/b4qUH.png)

Is there any way I can show or get to these obscured icons without having to switch to an application with a shorter menu bar?