Sue and the Glee girls tend to Mercedes, who has a nasty case of food poisoning. Will drafts Tina and a nervous, reluctant Quinn to sub for Mercedes.
When Tina bumps her head, the world of New Directions is turned upside down in her eyes.
Brittany goes into high gear as class president to spearhead the prom. Then, after nominations are announced, the kids kick into campaign mode.
Rachel and Kurt finally get their chance to audition for the New York Academy of the Dramatic Arts.
The glee club pays homage to a true icon when they cover Whitney Houston's greatest hits. Emma and Will are one step closer to their dream wedding.
New Directions pays homage to the movie Saturday Night Fever by grooving to disco-infused dance numbers.
Much to Blaine’s chagrin, his big-shot Hollywood actor brother, Cooper (Guest Star Bomer), comes to visit. Musical performances include "I'm Still Standing", "Fighter", "Up Up Up", "Hungry Like The Wolf/Rio" and "Somebody That I Used To Know".
Things heat up as New Directions goes head-to-head with the Dalton Academy Warblers at Regionals.
In honor of Valentine’s Day, Will challenges the New Directions to find and perform the world’s greatest love songs. Meanwhile, Rachel’s two dads Hiram (Guest star Jeff Goldblum) and LeRoy Berry (Guest star Brian Stokes Mitchell) pay a visit to McKinley High. Musical performances include "L-O-V-E", "Let Me Love You", "Stereo Hearts", "Home", "I Will Always Love You", "You're The Top", "Cherish/Cherish" and "Love Shack".
Will assigns the glee club a Spanish singing assignment and enlists the help of his musically inclined night school teacher.
The rivalry between New Directions and the Warblers intensifies en route to Regionals, and Kurt and Rachel receive news about NYADA.
When Will tries to plan a special surprise for Emma, he enlists the glee club to help him sweep her off her feet.
When New Directions is asked to perform at two different events -- on the same day, at the same time -- they have a tough decision to make.
In an attempt to recruit a few more members, Finn tracks down former teammate Sam Evans and convinces him to come back to the glee club.
As the race for McKinley High president comes to an end, someone is caught trying to fix the results.
Sue starts a smear campaign to take down her biggest competitor for the congressional seat.
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