Vince Gill and Amy Grant are expecting their first child next March, a fact Gill confirmed Tuesday night (Sept. 19) during a private concert. Married March 10 this year, the couple has four children from previous marriages. Gill has a daughter, Jenny, who is 18. Grant's management could not confirm the current ages of her three children -- Sarah, Millie and Matt. But at the time of the Gill/Grant wedding, they were 7, 10 and 12, respectively.