Carrie Underwood and Mike Fisher are celebrating their 8 year wedding anniversary! Access Online reports that the 35-year-old songstress shared two sweet photos from the couple's recent date night in honor of their anniversary on her Instagram. She lovingly captioned the snaps, "Here?s to 8 years, babe! Where does the time go?! I love you today more than yesterday...which was more than the day before...and so on and so forth. Here?s to many more years together! ? you!.