Liv undergoes vocal surgery and is unsure if she’ll ever be able to sing again, so Karen and Maddie call in reinforcements to help. Meanwhile, Parker and Val are surprised by their competition in the Mars Madness finals.
Liv and Karen return after Liv has her throat surgery. Maddie and Joey come to the living room. Maddie is nervous and she tells Joey that Liv just had throat surgery and not to freak her out. A second later she tells him that he can't handle it. After Joey leaves the room, they return. Maddie asks Liv how the surgery went and Karen tells her that Liv can't speak yet but the surgery went well. Liv then explains in a confessional that her recovery was a lot of hard work and that she didn't think she would ever be able to sing again. Out of the confessional, Karen tells Liv that a producer wants to meet with her about a Broadway musical.
- Dove Cameron as Liv and Maddie Rooney
- Joey Bragg as Joey Rooney
- Tenzing Norgay Trainor as Parker Rooney
- Kali Rocha as Karen Rooney
- Jessica Marie Garcia as Willow Cruz
- Shelby Wulfert as Maddie 2
- Emmy Buckner as Liv 2
- Chloe East as Val Wishart
- Jordan Fisher as Holden Dippledorf
- Victoria Moroles as Andie Bustamante
- Jimmy Bellinger as Artie Smalls
- Carter Hastings as Evan
- Laura Bell Bundy as Tracey Okahatchee
- Ego Nwodim as Ms. Karsch
- This is the first (and only) appearance of The Dream in the fourth season.
- Holden Dippledorf made his first and only appearance in Season 4.
- This is Part 2 of the 3-part series finale of Liv and Maddie: Cali Style.
- Evan made his first and only appearance in Season 4.
- Artie Smalls made his second and last appearance in Season 4.
- This episode is focus on Liv's voice, her dream to go to Broadway.
- This episode is similar to Muffler-A-Rooney, where Maddie was nervous if she will be able to play basketball again after surgery.
- Liv sings Key of Life again in this episode.
- Liv and Holden still appear to like each other.
- This is the second (and final) episode to feature live play during the episode, the other was Choose-A-Rooney.
- Lauren Lindsey Donzis (Ruby Smith) is absent in this episode.
| To view the Voice-A-Rooney gallery, click here.