Following the sad news that Charlie Daniels passed away at the age of 83, country music stars have been paying tribute to the 'The Devil Went Down to Georgia' singer.Luke Combs took to Twitter to tell his fans, 'The country music flag is flying at half mast today. RIP Charlie Daniels.'Meanwhile Chris Young posted a photo of Charlie saying, 'Absolutely gutted to hear the news of @CharlieDaniels passing this morning...