Why can't i put more songs on my iPhone 5?

I plug my phone into the computer and sync it into itunes but when i drag a song over to download it onto my phone it won't let me put it on. Is there a way that i can fix this?

Maybe your memory for your phone is full or iTunes is bugged.

Because you've taken up too much space in your phones hard drive. Try deleting some songs or apps to clear up space.

  • Will buying more iCloud space let me download more apps, songs, and photos? So i have deleted apps that i don't really need and deleted songs i don't listen to but still there's not enough space to even take a photo, A pop up comes up that says to manage my icloud storage. Would purchasing more icloud storage allow me to download more apps and have more songs and pictures on my iPhone 4 from sprint? It is an 8gb i think.
  • Why won't iTunes let me put songs on my iPhone? So I downloaded Eminem's new album from iTunes, and whenever I try to drag the album from my library to my phone, it comes up with a red circles with a line through it where my cursor is, why? I know I have enough space on my iPhone, but I haven't updated it to iOS 6.1.3 yet (I have a 3GS, cause I'm cheap like that) so is that the problem?
  • Why won't iTunes let me put certain songs onto my iPhone? ITunes used to work fine until recently. Now there are certain songs or artists that won't drag and drop onto my iPhone. Any answers?
  • Why is my new iphone 4s not letting me download more that 245 songs? Itunes says that 245 songs are using 11gb space? Thanks… But when I googled to see how many the answer was 3500 songs? I only have 245 and nothing else on there except the apps that come as standard.