IV is the fourth studio album by Whakatāne, New Zealand reggae band L.A.B.

It was released on 18 December 2020 via Loop Recordings Aot(ear)oa as a sequel to their 2019 album L.A.B.

It features two singles: "My Brother" and "Why Oh Why", which were also charted at number 35 and 1 respectively.

"Why Oh Why" became the band's second number-one single after "In the Air" (2019).

All tracks are written by Arapekanga Hayden Adams-Tamatea, Brad Donald Kora, Hiriini Stuart Kora, Joel Charles Shadbolt and Miharo Boaz Gregory‡ Sales+streaming figures based on certification alone.