Sign out of YouTube on iPhone video app uploader I uploaded a video to my YouTube account from a friend's iPhone.  Now I want to to sign out so that he can upload videos from his own account, but it's no longer prompting to login to a YouTube account or giving an option to log out, it's just leaving my account signed in.  Help?  Thanks.
Start the YouTube app on the iPhone
Select ".../More" at the bottom right
Select "Sign out" at the top left