What?

I'm really confuzzled. I thought I'd jump on the bandwagon and upgrade to "New Blogger", but, when it asked me to use/set up a Google account, I wasn't going to use my real name personal account, so decided to set up a new one.

It asked for my "Google Account email address" that must already exist, which confused me becuase surely there would be no Google mail address before the account was set up, so I just typed in my old azuric_87@yahoo.co.uk address that I use with this blog and that seemed to work fine.

Only now, I sign into my Blogger account with my Google Account details which use a Yahoo email address.

Wtf?