[11] Alejandro Chal Salazar was born in Trujillo, Peru, where he lived for 4 years before his family moved to Queens, New York City.

[1] He began rapping at age 12 and later started making beats and writing songs with a friend at the Museum of Science in Cambridge, Massachusetts.

[5][7] In June 2014, he produced the song "Never Satisfied" by American singer Jennifer Lopez, from her eighth studio album A.K.A.

[5][9] One of those singles, "Round Whippin'", was debuted online on The Fader and then followed up with a world premiere on Zane Lowe's Beats 1 channel and supported on Canadian rapper Drake's OVO Sound Radio.

[7][10] He has since premiered the official music video for "Round Whippin'" with Complex.com[13] and been featured on tracks by Ro James,[14] Stwo,[15] and Tess.

On January 25, 2018, Alejandro released the remix of his single "Love N Hennessy", featuring American rapper 2 Chainz and reggaeton singer Nicky Jam.

Writing about his 2016 album Welcome to GAZI, Jules Muir of Pigeons & Planes noted that A.CHAL attempts to cut "to the core of many of society's ills and triumphs by tapping into a deep well of personal experiences and anecdotes.