I found the SM58 picks up a lot of noise, especially low end.
I have several that would be far better, especially for females.
My favorites are Sennheiser 855 and AKG D5.
I have one that has been used only once or twice, that was designed for girls. It is similar to SM58, but less noise.

http://www.amazon.com/Peavey-White-Dynamic-Handheld-Microphone/dp/B003A4KYK4/ref=pd_cp_MI_3

I'll make you a deal you can't refuse! I'd like to see someone get some use from it. It is beautiful.
DonM