Faith Hill faced an unexpected setback during her preparations for Father's Day – and she couldn't resist sharing the details with her 1.3million followers.The country star has been married to fellow singer Tim McGraw since 1996 and together they share three daughters, Gracie, 24, Maggie, 22, and 19-year-old Audrey.MORE: Faith Hill and Tim McGraw celebrate incredible family news WATCH: Tim McGraw shares Valentine's Day video for wife Faith HillIn celebration of Tim's special day, Faith tried to