Depends on how much of a rockstar you are. Dave Grohl was famously hospitalized for drinking way too much coffee: http://www.nme.com/news/music/them-crooked-vul

Depends on how much of a rockstar you are. Dave Grohl was famously hospitalized for drinking way too much coffee: http://www.nme.com/news/music/them-crooked-vultures-14-1294541 http://www.nme.com/news/music/them-crooked-vultures-14-12945... He had a conversation with his doctor about it that went something like "So how many cups of coffee do you have a day?" and his answer was "How many cups are in a pot? Because I drink like five of those..."