The 47-year-old handsome singer also dished about his Oscars performance, in which he'll be singing a touching version of country legend Glen Campbell's nominated song, "I'm Not Gonna Miss You."
The song is featured in the documentary Glen Campbell, I'll Be Me, which chronicles the "Rhinestone Cowboy" singer's farewell tour and his struggle with Alzheimer's disease. With Campbell currently in a Nashville facility, his family asked asked McGraw to step in and perform the song.
"Glen is just such an iconic artist. When you look back at the legacy of what he's left behind musically -- the music that he's made, the records that he's made ... it's about the quality of the songs that he recorded," McGraw stressed. "I'm honored to be here. I'm honored to step in and sing this song. I just think it's going to be a great moment. I feel very proud to be able to do it."
Though will he be able to get through the song without getting emotional?
"I'm gonna try to hold it together," he said. "I'm Italian and Irish so it's going to be tough."