system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How come accents go away when people sing.
gpt
They don't.  
What you may be hearing is someone imitating a singer with a differing accent. You will note that in certain cultures you'll detect very strong accents in singing. Country music usually has a very Southern United States accent attached.  
British rock music can sometimes be detected because of how it's common for British people to sometimes add an intrusive "r" sound to the end of some words.  
Think *"idear"* instead of idea, or *"sawr"* instead of saw.