|Season One, Arc One, Episode Six|
|Air date||March 4, 2012|
When Alcohol Is Involved
A major unexpected secret plot made by Jesse and a rival show choir may have the Unitards out of the Sectionals competition weeks before the competition. Meanwhile, the romance between Harmony and Terri spreads quickly across Jackson High, another romance between June and Tommy is broken off by June, after Tommy apparently makes a fool out of himself. Jesse also pays a visit to Carmel High, to see that Vocal Adrenaline aren't as strong as they previously were.
- I Love You, I Do by Dreamgirls. Sung by Carlton Ayers.
- And I Love Her by The Beatles. Sung by Tommy Barlow with Mark LaTerri and Spider Reed.
- All of Me by Michael Bublé. Sung by Jesse St. James.
- Bounce by Calvin Harris ft. Kelis. Sung by Carlton Ayers with Vocal Adrenaline.
- Part of Me by Katy Perry. Sung by Harmony Harpse.
- Lindsay Pearce as Harmony Harpse
- Jonathan Groff as Jesse St. James
- Josh Hutcherson as Jason Hill
- Jordin Sparks as Poppy Hill
- Dakota Fanning as Liz Peep
- Alex Pettyfer as Mark "Terri" LaTerri
- Robbie Amell as Freddie Weathers
- Emily Didonato as Justine Callaway
- Reina Hein as Teddy Mapp
- Cameron Mitchell as Andy Jones
- Bonnie Wright as Junette Harris
- Freya Maya as Amanda Evans
- Rita Ora as Laura Tomlinson
- James Maslow as Tommy Barlow
- Logan Lerman as Rex Espley-Wilkes
- Alex Newell as Carlton Ayers
- Vanessa Lengies as Sugar Motta
- Samuel Larsen as Spider Reed
- Dan Benson as Simon Click
- Chad Lowe as Riley Hadberg