Need help with best friend's riddle!

Do you know the three sisters, playing by the stair?

Take a guess, give it your best, and see how you fare.

Sister number one is gorgeous, beautiful and true

I would say that heads will turn if she resembles you

Sister number two is brash, excitable and loud

For she will travel far and wide to entertain large crowds

Sister number three is last but certainly not least

For chance, law, and equity are very fickle beasts

Now let me give you a little hint, to spicen up the game:

These three sisters are actually triplets, and all of them share a name!

Who are they?

(He gave me one more hint too: each stanza only has one theme for the sisters, one predominant trait. I.e, for the first one it's that she's beautiful, I think, and the "true" part can be ignored.)

Please help!