Tomorrow night, Glee will pay tribute to Whitney Houston.

From there, it's on to performing in front of Whoopi Goldberg and Lindsay Lohan, while naming the prom king and queen before graduation. Indeed, Fox has released the official episode descriptions for the final four episode of season three.

Consider yourself spoil warned and read on...

May 1: "Choke:
Rachel and Kurt finally get to audition for NYADA, but their nerves are rattled when they find out it’s for the dean (guest star Whoopi Goldberg). Meanwhile, Coach Beiste reveals a secret, and Sue Sylvester and Coach Roz lend a helping hand.

May 8: "Prom-asaurus”
Brittany goes into high gear as class president to spearhead the prom. Then, after prom king and queen nominations are announced, the kids kick into campaign mode, and some of the outcasts organize a rival celebration. 

May 15: “Props /TBD – Two-Hour Event
As the countdown to graduation continues, the kids of New Directions prepare a high-concept routine for Nationals. When Tina bumps her head, the world of New Directions is turned upside down in her eyes. Then, the New Directions perform at Nationals for celebrity judge Lindsay Lohan in a special two-hour episode.

May 22: Season finale
In the Season Three finale, graduation is finally here, as McKinley High’s class of 2012 looks to the past and present, while contemplating the future.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.