Looking at
this pic of Rika in concert, I'm fairly certain that the mics used (atleast at that show) are any of the ones we've mentioned. Even though that's not a Shure, it looks like a SM-87A, which is ALOT of money, unless you're in the music business and/or you're touring with a nice budget.
I personally recommend the SM-58 anyway, because of it's cost and quality, but as far as I can tell, H!P is using a completely different brand. Sorry I don't know which one...