Teenager and aspiring singer/songwriter Megan McNeil has been battling an aggressive cancer since she was 16 years old. She wrote this moving and well-perfomed song, The Will to Survive, to raise awareness and money to battle childhood cancer. The song (which was produced by Rage Against the Machine and Nickleback producer, Garth RIchardson) is available on both iTunes http://bit.ly/dfptVM and Amazon http://amzn.to/bKaVKG. The kids singing back up are also battling cancer. Check it out…