What's Be Happen? is the debut studio album by New Zealand reggae band Herbs. The album was released in July 1981 on the eve of the 1981 Springbok tour by Warrior Records, only the second album to be released by the label at that point. What's Be Happen? is often seen as the first album of both Pacific and New Zealand reggae, blending reggae themes and styles with traditional Polynesian rhythms and musical structure. This is seen through elements such as the use of Cook Islands pātē on the title track and frequent use of the so-called "Māori strum" method of guitar on tracks throughout the record. As a result, the album has been described as representing a watershed moment in the development of a distinct form of reggae within New Zealand and establishing Herbs as a prominent band within that.

Herbs are a New Zealand reggae group founded in 1979 and led by singer-guitarist Dilworth Karaka, the only constant member. Since its foundation Herbs has been multi-ethnic in membership and featured Samoans, Tongans, Cook Islanders, New Zealand Europeans and Maori members. The 11th inductees into the New Zealand Music Hall of Fame, were once described as "New Zealand's most soulful, heartfelt and consistent contemporary musical voice". It has been said their debut EP What's Be Happen? "set a standard for Pacific reggae which has arguably never been surpassed".