I'm just going to copy my copy from Bnet over here. The tl:dr is if you haven't ever got to finish King's Fall me and some Sherpas will be taking 3 players through the Raid tonight on PS4. Sign up for a chance here.

Long version:

Have you not yet completed the King's Fall Raid? This week, you may get your chance. I have invited two special guests from /r/DestinySherpa to join me in guiding 3 Guardians, who have not yet defeated Oryx, through the Raid. If you have yet to fell the king, sign up below for a chance to join a group of experienced warriors.

We are switching between consoles every week. Last week we played on XB1, so this week we will be on the PS4. This all begins Friday 3-11-16 at 8pm. Check back at 3pm to see if you were selected to play. We might send some invites out during the Raid if someone has to leave early.

If you are a longtime veteran of the game with dozens of Raid completions - don't worry. We'll be doing more Raids in the future, and you'll get your chance to play. Everyone who does play in a Bungie Community Fireteam will have their name added to the BCF Hall of Fame.

To enter leave a comment below with your PSN ID and your favorite gun in Destiny.

Remember this is for those who have never defeated Oryx.