For example demi lovato and miley cyrus? how do they come up with the songs or how do they structure it? Is their also a routine or trick that they use? And how long do you think it takes them to write songs? ...
Thanks for anyone who can help!
xo.

Some of them do and some of them don’t. Some of them co-write their songs
Well sometimes singers write songs by being inspired by something and writing it down. The song could be about what they did today or how they felt. So basically it could be an emotion your feeling. It could take someone years to write a song but it all depends on the person.
Hope this helps!