[3] Alu's mother is from Falealili [de], Samoa, and his father is from Australia.

[4][5] He began learning ukelele at age six, and has played drums professionally with Xavier Rudd.

[3] In 2019 Alu released his third album, Flow, which The Australian called "upbeat and uplifting",[7][2] and which Australian radio station Double J included on their list of the 50 best albums of 2019.

Together they recorded an EP of folk songs sung in Samoan, which was released as Samoa Silasila in 2022.

[10] It was described by Songlines magazine as "nothing too demanding, just a finger-tapping sway in a sun-drenched musical hammock.