The context of the following conversation is Riley and Sydney started their own band where Riley was the main singer and Sydney was the drummer however Sydney liked to join in singing with Riley.:
Sydney says I'm the drummer in a band..
The friend responds That's cool do you do anything else?.
Sydney responds I want to sing some more..
The friend responds Do you already have a singer?.
Sydney responds Yes, Riley is our main singer..
The friend responds Maybe see if Riley needs a back up singer..