Need a calendar plugin

I am looking for a calendar to put in the sidebar that will show dates that our band has a performance scheduled. I do not need any fancy features, just one user will be adding things, all it needs is to show somehow (bold, differnet color, whatever) that there is something scheduled on this date and then show what it is either by mouseover or clicking on the day.

I can’t seem to find samples of some of the calendar plugins available and don’t know if they will work for what I need.

Thanks.