|“||Cheesy pop's not exactly my style.||„|
|~ Ash on Buster Moon's song selection|
Ash is an anthropomorphic porcupine and one of the lead protagonists in Illumination's 7th feature film Sing. She is voiced by Scarlett Johansson, who also voiced Princess Mindy in The SpongeBob Squarepants Movie, and portrayed Black Widow in the Marvel Cinematic Universe, Lucy in her titular movie, and Major Mira Kilian in the live-action adaptation of Ghost in the Shell.
Ash has short light brown fur with dark brown and white quills that run along her head and back. She wears dark brown eye-shadow and mascara, a black and white striped shirt over a grey undershirt, a plaid skirt over blue jeans, and dark blue tennis shoes. Ash's outer shirt has two quills and three pins attached to the front.
During rehearsals, Ash wears a frilled and sparkly purple dress with white layers, a purple belt with a bow, and matching shoes at Buster Moon's request. For her performance at the concert in the Moon Theater ruins, Ash wears the same dress, but with the skirt cut to knee-length and the belt removed. She also wears a red leather jacket, black and red striped leggings, black boots, sparky blue eye-shadow, and red heart-shaped glasses that formerly belonged to Becky.
Ash is a prickly teenage porcupine with a punk rock attitude. She has a sarcastic style of humor, and during her participation in Buster's singing competition, her rebellious nature puts her at odds with the koala. When it comes to music, Ash prefers rock. She openly expresses disdain for "cheesy" pop music and prefers to write and perform her own songs. This causes conflict between Ash and her boyfriend Lance, who is too self-absorbed to allow her to potentially upstage him.
At first, Ash's feelings for Lance blinds her to his ego, but he ultimately betrays that love, leading to a vicious break-up. Afterwords, Ash becomes moody to the point of crying when exposed to anything that reminds her of Lance. Luckily for her, she is able to move on with the support of Buster and the other contestants.
Ash and Lance are introduced trying and failing to land a gig at Larry's bar. Lance blames Larry's dissatisfaction with their performance on Ash, reminding her that he's the lead singer and she the backup vocalist. Later, flyers advertising Buster's singing competition are impaled on both porcupines' quills while they wait for a tram. Ash takes a flyer off of Lance, and is so distracted reading it he accidentally boards the tram without her. At the audition, the two perform as one act, but Buster ultimately selects Ash alone. At first Ash refuses, but she changes her mind during a conversation with Lance in her apartment that night, in spite of his claims that she would be a sellout.
To Ash's displeasure, Buster tries to mold her into a bubblegum act, providing her with a list of pop songs to perform and a princess dress to wear during rehearsals. In her apartment, Ash and Lance have a good laugh at the song list, but Lance shoots down Ash's idea to perform her own song instead. To him, the best way to win the prize money is to sell out and do what Buster says. Later, Buster settles on "Call Me Maybe" as Ash's song; she argues against this choice but ultimately backs down.
One night after rehearsals, Ash returns home to find Lance singing "Love Interruption" with another female porcupine named Becky. The two almost share a kiss before Ash makes her presence known; shocked and angry, Ash kicks them both out. Lance blames Ash for his affair, saying she's never around anymore. Ash reminds him that she was participating in the competition for the both of them before finally slamming the door shut. Ash's heartbreak weighs on her during the next rehearsal, and she breaks down crying mid-performance. Buster obliviously asks if she's upset over her dress, which proves to be the last straw for Ash; she shoots out quills and runs offstage. Backstage, Ash is comforted by fellow contestants Rosita and Gunter, who tell her that she's too good for Lance. Rosita also offers Ash any confections from her purse.
Ash copes with her to breakup by writing her own song. Buster overhears it and encourages her to perform it during a special rehearsal for Nana Noodleman. However, this rehearsal is interrupted by three bears who were cheated out of money by contestant Mike; the resulting confrontation begins a chain of events that destroys the Moon Theater. Returning home from the disaster, Ash passes Harry's bar, glances inside, and runs off distraught at the sight of Lance and Becky performing. However, she recovers emotionally and, alongside the rest of the performers, encourages Buster to continue the show. Together, they construct a stage in the Moon Theater ruins. Ash, who altered the pop princess dress to fit her own style, performs her finished song, "Set It All Free". Unbeknownst to Ash, both Becky and Lance watch her on TV. Becky turns it off mid-performance and insults Ash. Lance agrees with Becky as she leaves the room, but once she's gone, he quickly turns the TV back on. In the end, the open-air concert is a rousing success, and Ash attends the grand opening of the New Moon Theater.
|“||Sorry, I get carried away.||„|
|~ Ash apologizing to Lance after their failed gig at Harry's bar|
|“||Would you stop? I'd only be doing it for us.||„|
|~ Ash to Lance about the singing competition|
|“||I am NOT singing this!||„|
|~ Ash to Buster about "Call Me Maybe"|
|“||Wow! It's like you can see inside my tiny teenage mind!||„|
|~ Ash sarcastically to Buster|
|“||I did it for us, Lance! You and me!||„|
|~ Ash to Lance, while kicking him out of her apartment|
During her performance of "Set It All Free", Ash throws Becky's glasses into the audience, symbolizing her letting go of Lance and Becky.