Here are couple of very interesting youtube videos featuring Ana Ivanovic. In this first one Ana is showing the proper way of how to hit a serve, this could come quite handy for those of you who just not watch tennis but also play from time to time.
In the second video Ana will give you a few lessons of how to look good in a bikini :)
And in case you still don't know how to jump into a pool, here's another lesson.
And if you're for some cool dance, here's something interesting that also includes Andrea Petkovic.