What a pain in the ass!!

I have got an assignment on making a blog with my group members,but i already have one..still it's not an individual task that this assignment aimed,but all of members have to sign up on making this group's blog...But what if i make some changes on my blog and titled it as a group blog,come to think of it,it is such a great idea,i can save up some time...beside,i rarely use this blog,so why not!