system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why do many of pop music's biggest names (Rihanna, Katy Perry, and Jason Derulo) need a group of writers and producers for each song, even though their songs are so simple, lyrically and musically?

It feels like the lyrics to most of their songs could be written by a single person. And the beats, too.
gpt
Today's pop hits are constructed. Separate elements put together to create a whole. One guy does the beats, one guy sorts out the sample, one guy does the main melody, another person might chip in with an idea for the lyrics, Rihanna herself might be responsible for the main body of words and another person will probably be doing the vocal melody lines. And a rapper might be involved, so he'll be writing the rhymes. That hypothetical track alone already has seven co-writers.