When Liv’s new show is in danger of being cancelled because they can’t find the right cast, Liv helps by searching for the perfect star. Parker concocts a plan to take Joey down, and his new Falcon persona, by having Joey test-drive a dangerous invention.
- Dove Cameron as Liv and Maddie Rooney
- Joey Bragg as Joey Rooney
- Tenzing Norgay Trainor as Parker Rooney
- Kali Rocha as Karen Rooney
- Lauren Lindsey Donzis as Ruby
- Chloé Wepper as Gemma Nimbus
- Jolie Jenkins as Aunt Dena
- Amarr M. Wooten as Finch
- Emmy Buckner as Liv #2
- Shelby Wulfert as Maddie #2
- This episode features and introduces Liv's new show, Sing It Louder!!, a continuation of the show that made her famous.
- This is the second episode that has the name of one of Liv's TV shows in the title, the first being the season 3 episode, Voltage-A-Rooney.
- This episode marks the second episode to feature a show within a show (after Voltage-A-Rooney) and also makes Liv and Maddie the 4th Disney series to have a show within a show, preceded after The Famous Jett Jackson, Sonny With a Chance, and Shake It Up.
- Finch references Superman by exclaiming the famous opener, except with "copter" in place of "plane".
- This is Gemma's first appearance in season 4.
- Gemma got fired from Voltage and blamed for Liv quitting (though it might have also been for her getting into a fight with the producers).
- This is the first appearance of the Sing It Louder!! set.
- A new song, One Second Chance is featured in this episode. It's also the first episode in season 4 to feature a new song.
- This is the second episode after the season 3 episode, Choose-A-Rooney, that features a live play for the viewers.
- According to Ron Hart, Joey Bragg did all the stunt scenes (where Joey flies) by himself and risked his life for it.
- The Sing It Louder!! set was inspired by Hogwarts, the school from Harry Potter.
| To view the Sing It Louder!!-A-Rooney gallery, click here.