updated 03/15/2013 AT 11:15 AM ET
•originally published 03/15/2013 AT 12:45 PM ET
The proud papa (without his customary cowboy hat!) and Hill, both 45, and their growing girls, Maggie, 14, Audrey, 11, and Gracie, 15, set out Thursday for a chilly British stroll, taking in the sights and barely recognizable as they bundled up in chic winter coats, gloves and jackets.
McGraw, 45, who is newly fit and in high gear after cutting out drinking for his health, is set to perform Saturday at the C2C: Country to Country music festival, a two-day concert at London’s O2 Arena. The event, said to be the UK’s first-ever country music festival, will also feature Carrie Underwood, Vince Gill, Darius Rucker and Little Big Town, among other U.S. acts.
McGraw’s latest record, “Two Lanes of Freedom,” was released in February. He and Hill, 45, who have toured in the past, are performing together in a series of weekend dates in Las Vegas through April.