Pentatonix redefined modern a cappella music by turning five unaccompanied voices into a global pop powerhouse. Formed in Arlington, Texas, the group rose to mainstream fame by combining intricate vocal arrangements, flawless pitch, and innovative beatboxing. Understanding the group requires looking at both their current lineup and the foundational history that brought them to international prominence.
The current Pentatonix lineup consists of Scott Hoying, Mitch Grassi, Kirstin Maldonado, Kevin Olusola, and Matt Sallee. While original bass Avi Kaplan departed in 2017, the addition of Sallee allowed the vocal ensemble to maintain its signature harmonic depth while continuously exploring new genres.
The Core Lineup: Current Members and Vocal Roles
Each member of Pentatonix brings a specific vocal classification and technical specialty to the group, enabling them to replicate full instrumentals using only their mouths and vocal cords.
Scott Hoying
Scott Hoying serves as the baritone of the group and acts as one of the primary co-founders. His warm, grounding lower-mid range anchors most of their musical arrangements. Hoying grew up in Arlington and studied popular music at the University of Southern California, where he sang with the SoCal VoCals. Beyond singing, he contributes significantly to vocal arrangement and acts as a central figure during live performances. As highlighted in recent reports by Reuters, the results are notable.
Mitch Grassi
Possessing a soaring high tenor range, Mitch Grassi often handles the most demanding lead vocal parts. Grassi has known Hoying since childhood, and their shared musical vision sparked the creation of the original trio. His vocal agility allows him to hit whistle tones and complex pop hooks with remarkable precision, giving Pentatonix its signature contemporary edge.
Kirstin Maldonado
Kirstin Maldonado provides the rich mezzo-soprano harmonies and occasional lead vocals that balance the group's sonic profile. Having collaborated with Hoying and Grassi since high school theater productions, Maldonado brings a steady theatrical background and precise pitch control to both studio recordings and stadium tours.
Kevin Olusola
Joining the group before their breakout season on NBC's The Sing-Off, Kevin Olusola introduced a game-changing element: celloboxing. This technique combines simultaneous beatboxing and cello playing. Within Pentatonix, Olusola acts as the primary vocal percussionist, utilizing drum-machine mimicking, mouth trumpets, and rhythmic vocal effects to build the underlying groove for every song.
Matt Sallee
Matt Sallee stepped into the bass role in 2017 following Avi Kaplan's departure. Possessing a deep, resonant lower register, Sallee anchors the group's harmonic foundation. His smooth integration into the ensemble allowed Pentatonix to transition seamlessly into new pop and holiday music projects without losing any acoustic weight.
History and Evolution of the Ensemble
The journey of Pentatonix began in 2011 when high school friends Hoying, Grassi, and Maldonado entered a local radio competition to meet the cast of Glee. Though they didn't win that specific contest, the positive reception of their trio arrangement inspired them to pursue a cappella seriously.
Recognizing the need for a bass and a beatboxer, they discovered Kevin Olusola via YouTube and recruited Avi Kaplan through a mutual friend just days before auditioning for the third season of The Sing-Off. Their fresh take on contemporary radio hits won over judges and viewers alike, culminating in their victory in late 2011.
Following their television success, the group established an independent digital presence, launching a YouTube channel that amassed millions of subscribers. Their strategic release of EPs like PTX, Volume 1 and viral medleys—such as their tribute to Daft Punk—propelled them onto the Billboard charts and earned them multiple Grammy Awards.
Lineup Changes: The Departure of Avi Kaplan
In 2017, original bass singer Avi Kaplan announced his departure from the group, citing the relentless touring schedule and the physical strain of constant travel. Kaplan wanted a slower pace of life and went on to pursue a solo career focused on folk and Americana music under the moniker Avi Kaplan.
Rather than disbanding, the remaining four members held auditions to find a new low-end vocalist. They selected Matt Sallee in late 2017, whose background in gospel and jazz choir allowed him to step effortlessly into complex vocal arrangements while bringing a fresh energy to their live shows.
Common Misconceptions About Pentatonix
- The use of hidden instruments: Many casual listeners assume Pentatonix uses synthesizers or electronic backing tracks during live shows. In reality, all instrumental sounds—including bass drops, snare cracks, horn sections, and string arrangements—are produced entirely by the human voice, occasionally enhanced by live vocal processors or harmonizers.
- Origins outside Texas: While the group is frequently associated with Los Angeles or national touring circuits, the core creative trio originally formed their partnership in Arlington, Texas.
- Exclusively covering pop songs: Though famous for viral pop covers, Pentatonix has released several original albums and heavy catalogs of traditional holiday music that showcase songwriting capabilities outside of mainstream radio hits.
Frequently Asked Questions
Who was the original bass singer for Pentatonix?
Avi Kaplan served as the original bass singer from the group's formation in 2011 until his departure in 2017. He was replaced by Matt Sallee.
Do Pentatonix members use autotune or real instruments?
They do not use real instruments on their core a cappella tracks. While studio recordings utilize multi-tracking and standard audio production tools like EQ and compression to balance the mix, their live performances rely strictly on live vocal cords and authorized performance microphones.
How many Grammy Awards has Pentatonix won?
Pentatonix has won three Grammy Awards: Best Arrangement, Instrumental or A Cappella for "Daft Punk" in 2014, Best Arrangement, Instrumental or A Cappella for "Dance of the Sugar Plum Fairy" in 2015, and Best Country Duo/Group Performance for "Jolene" featuring Dolly Parton in 2016.
Are Scott Hoying and Mitch Grassi related?
No, they are not related by blood, but they have been close friends since childhood in Texas and have collaborated on multiple side projects, including the musical duo Superfruit.
