Nearly all stars can only be seen as points of light in the night sky. We know
that they come in all sorts of colours and sizes and that some have spots and
others pulsate. What makes stars different from one another lies deep inside,
where differences in chemical composition affect nuclear reactions and 
convection currents. How do we know this? Pulsations are effectively the
vibrations of a star. They allow a unique view inside many stars. By
listening to the sounds stars make, we can peer beneath their surfaces. In
this talk, we shall review recent progress and look at future prospects for
"asteroseismology". In particular we shall look at the latest results from
the superfast camera "ultracam".

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