Dwayne "The Rock" Johnson took a moment from his busy schedule to send some positive vibes to a fan battling stage 4 breast cancer. The Rock took to Instagram to share a sweet message for his fan "Missy" whose been fighting breast cancer for the past six years. Missy is not only a fan of The Rock but she's also a huge fan of Garth Brooks. In the video Johnson tries his hardest to cover a Garth Brooks song to bring a smile to her face... but his singing voice .... well.... it may need a lil tune up.