Carrie Underwood and Mike Fisher

Her song lyrics say, “I don’t even know my last name…” and right now newlywed and 2010 ACM Entertainer of The Year Carrie Underwood have some wondering how formally she may use her new last name Fisher!  Carrie Fisher?!.

We even heard the couple used “Fisher-wood” in some weeding announcments.

Mike Fisher and Carrie Underwood tied the knot this weekend.    The wedding happened Saturday at the Reynolds Plantation resort in Greensboro, Georgia.

People magazine reports they chose classical music and Bible readings to make their wedding day (July 10) a spiritual one. And the bride wore a Chantilly lace Monique Lhuillier dress.   No official pics yet but they told PEOPLE “We could not feel more blessed to have found each other and to have shared this day with our friends and family that mean so much to us!” .   Interestingly….they signed the statement “Mike & Carrie Fisher.”