[3][4][5][6][7] As of September 2023, Pentatonix has released eleven albums (two of which have been number ones) and six EPs, have had five songs in the Billboard Hot 100, and won three Grammy Awards as "the first a cappella group to achieve mainstream success in the modern market".

[10] In April 2020, Grassi debuted a solo moniker, Messer, doing a DJ set of "a range of dark, techno tunes" at Paper's Club Quarantine Zoom event during the COVID-19 pandemic.

Grassi has an older sister, Jessa, and remembers doing singalongs to pop tunes and Christmas songs in homemade variety shows with her for his parents when he was very young.

[15] Grassi and Hoying were both active in theater arts in Arlington and met when they were cast in the musical Annie; they both also play piano.

[22] The three quickly put together an a cappella cover of Lady Gaga's 2010 "Telephone" featuring Beyoncé to compete in a local radio station contest to meet Glee cast members.

[19] The group got a record label, who dropped them as their audience was too niche—with no guarantee of selling albums, or concert tickets—but Grassi felt it was ultimately advantageous as around late 2012 Pentatonix started posting videos to YouTube building an international fan base.

[39][8][40][41] Their three Grammy wins were for their: Daft Punk medley tribute to the French electronic music duo (2015); version of Pyotr Ilyich Tchaikovsky's "Dance of the Sugar Plum Fairy" (2016); Jolene collaboration with Dolly Parton (2017).

[42] The individual members find inspiration to cover recent songs, as well as international classics, then if they decide as a group it is a good match, they compose an arrangement; their friend Ben Bram, who is also their producer, is their co-arranger.

[44] Grassi noted he and Hoying both being openly gay has been appreciated by the group's fans; a common demographic is midwesterners and Christians who comment that the pair have helped them accept their LGBTQ children.

[48] Navigating Pentatonix versus the duo's projects and touring schedules was simplified by the quintet's rule that the larger groups' commitments come first.

[47] Superfruit's debut video for Future Friends, "Imaginary Parties", was noted by InStyle for the bold fashions that their stylist Candice McAndrews helped them secure.

"[49] McAndrews shared that a Superfruit fitting will have seven to nine racks of clothing for each, including designers "Alexander Wang, Loewe, Vetements, Haider Ackermann, Raf Simons, and Maison Margiela".

[49] In April 2020, Paper announced that Grassi would be debuting his solo project, Messer, at a Club Quarantine Zoom event during the COVID-19 (coronavirus) pandemic.

[50] This initial online outing of Messer was a DJ set of "dark, techno tunes"[11] but Grassi would later release solo music under the same moniker.

[53] A remix by Planningtorock of "Boy in the Pictures" (the third track on Roses) was released on October 25, 2021 along with the b-side, "Love Supply," a Messer original co-written with Xander Rushie.

The 2022 single, "Leather," again co-written with Rushie along with Austin Macedo, was highlighted by Frontview Magazine as a departure from Messer's previous releases moving towards " a more sensual and r&b-inspired sound.

[4] He explains he has a "totally avant garde interest in art, fashion and music", and a duality with Pentatonix to respect the business and fan base at the same time.