Band/Singer recommendations?

Update: To help you a bit there, some of what I usually like to listen to Paramore, Fall Out Boy, Joan Jett and the Blackhearts.
If there's any bands similar to that or you think you have a really good band/singer in mind that's not like them, please comment.
Thank you!
Update 2: I apologize everyone. To make things easier, the genre I listen to is mostly rock music (alternative rock, rock'n'roll, that kind of stuff), pop, metal.
Not a big fan of rap.
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