You guys are morons. It's out and it's live. Case closed.
[b]EDIT:[/b] For those of you saying Deathsinger hasn't given you loot, I suggest you carefully read the patch notes... "The Deathsinger now has a [b][i]chance[/i][/b] to drop loot..." Also, it could be possible that Deathsinger is tied in with your previous completeion, wait until tomorrow's reset and try again.
[b]EDIT 2:[/b] Bungie's official tweet saying patch is out TODAY: [url=https://twitter.com/bungie/status/554709919526420480]link[/url]