The singer said her dog Pearl is "very near the end" during a recent trip home for the holidays

The country star is currently in the midst of her Deeper Well tour

The two-hour special airs on Thursday, Dec. 12 and will be hosted by comedian Michelle Buteau

From reunions between friends to funny faces backstage, see all the shots you didn't see during Thursday's broadcast

Musgraves is nominated for three awards at this year's show