TV TATTLE
Tim McGraw wrote an original song for Nat Geo's Alex Honnold ropeless mountain climbing documentary
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The country superstar sings "Gravity," which he co-wrote with singer-songwriter Lori McKenna, for the docmentary Free Solo that follows free soloist climber Honnold as he ascended Yosemite's El Capitan.
TOPICS: National Geographic, Free Solo, Alex Honnold, Tim McGraw, Documentaries
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