How do i add music to my iphone 4?

My account on iTunes is authorized, but i still cant put music on my iphone! First try going on your phone to setting>store> and making sure your account is turned on your phone and then try syncing. When you plug your phone to your computer, you should see your phones info and other tabs on top. Go to the music portion and sync the music you want. You can create play lists to sync certain songs instead of every song by the artist or type of music. Once you click on the music you want

Would shutting off an Iphone and or letting the battery die completly damage it?

My idiot uncle has the Iphone 3GS (newest one). His girlfriend told him that shutting it off or letting the battery completely die would damage it and make it useless. Is this true? nope. absolutely not. not true at all. let it die. doesnt matter!! Wrong letting it die is called a "cycle"you are suppose to do it once or so a monthyou are fine with both.... Wow, And I Bet He Listened To Her.No, That Won;t Damage It. Actually, If She Would Go To The Apple Website And Read The Section