Choosing Pharrell Williams as his coach, Fredericks set series iTunes sales records and became the youngest male winner in the history of the competition at age 16.

[3] At age 11, Fredericks received voice training[4] and began performing regionally at farmers markets, open mics, community events, and folk clubs (such as The Bitter End in New York City).

[9] In his Battle round, Fredericks teamed up with Noelle Bybee to sing Creedence Clearwater Revival's "Have You Ever Seen the Rain" and was chosen by Williams to advance.

In his Knockout round, Fredericks sang in a three-way match with Mia Z. and Paul Pfau, after Anthony Riley withdrew from the competition.

[10] He received the first iTunes Singles Chart top 10 multiplier bonus of the competition with "Imagine", reaching the second position by the close of the voting window.

[13] In the Top Six, Fredericks performed Al Green's "Take Me to the River" (reaching the tenth position on iTunes), featuring an energetic teen dance troupe surrounding the more reserved singer.

[16] In the Top Five, Fredericks' covers of Christina Perri's "A Thousand Years" and Buffalo Springfield's "For What It's Worth" both garnered him the highest ratings of the week, reaching the second and third positions on iTunes, respectively.

[17] For the May 18, 2015, finale show, Fredericks released the single "Please" (an original song written by Ray LaMontagne) and an accompanying music video.

[19] On the May 19, 2015, results show, Fredericks shared the stage with John Fogerty in a medley of Creedence Clearwater Revival hits — "Born on the Bayou", "Bad Moon Rising" and "Have You Ever Seen the Rain?".

[20] Fredericks was declared the winner at the end of the show,[21] with Meghan Linsey second, Joshua Davis third, and Koryn Hawthorne fourth.

[22] Throughout the competition Fredericks maintained a strong social media presence, with leading numbers of followers on Facebook, Twitter, and Instagram.

Band members include Chris Morrison on guitar, Arthur Lee Fredericks on bass, and Bob Henderson on drums.

[29] Reviewer Kira Grunenberg said "The musical aesthetics that take shape over A Good Storm are plentiful, which immediately removes Fredericks from the stable of a one-trick pony.

"[39] "A Good Storm" saw Fredericks in collaboration with producers Dan Romer, Saul Simon MacWilliams, Mikal Blue, Johan "Izy" Lindbrandt, Jamie Hartman, Jayson Dezuzio, and Pharrell Williams, as well as co-writers Dan Romer, Saul Simon MacWilliams, Dave Bassett, Mikal Blue, Johan "Izy" Lindbrandt, Shari Short, Jamie Hartman, Jayson Dezuzio, Whitney Phillips, Tara Lee, and Foy Vance.

[43] In November 2016, Fredericks announced a December "Winter Storm Tour" to 12 cities in the Eastern US with guests Mia Z. and Gabriel Wolfchild & The Northern Light.

[44] On January 12, 2017, Fredericks announced that he had become an independent artist, having parted ways with Republic Records and Mick Management in an "amicable and mutual decision."

On April 1, 2017, Fredericks participated in the 518 Songfest, a fund raiser for a local radio station and the Columbia Arts Team, at The Egg in Albany, NY.

[49] Fredericks announced on May 5, 2017, that he was at Dreamland Recording Studios creating his new album to be titled Hide Your Ghost and that he will soon be touring, joined by The Voice alumn Gabriel Wolfchild and the Northern Lights, and American Idol alum Haley Johnson.

Before winning The Voice, he performed in a showcase at the Youth Arts Forum at the Bitter End in New York City on June 7, 2014, to benefit the YAF and the Cystic Fibrosis Foundation.

[60] Shortly after winning The Voice in May 2015, he performed "Imagine" for a crowd on Red Nose Day (May 21, 2015) in New York City to raise money for poverty-stricken children.