Tim McGraw and Faith Hill touched down in London today with their three daughters, Gracie, Maggie, and Audrey. The group later reemerged for a walk around the city after changing into warmer outfits. They're overseas just a few days ahead of the Country to Country concert at the O2 arena this weekend. It's the first ever C2C festival and will include performances by Tim, LeAnn Rimes, Carrie Underwood, and more. Faith isn't one of the confirmed artists, but she's no stranger to sharing the stage with Tim. The couple, who have toured together in the past, currently hold residency at the Venetian in Las Vegas, where they perform their Soul2Soul shows. They're on a break from the Sin City schedule and will return for additional dates next month before wrapping up the limited engagement on April 27. Tim will be back on the road shortly after, though, for his Two Lanes of Freedom tour that runs through July.