Haku quickly made a name for himself when he joined the WWF as King Tonga in 1986. He made a big impact when he body-slammed Big John Studd and he became one of the most popular fan favorite at the time.
A few months after he debuted in singles, he formed with The Tonga Kid a great babyface tag team. When they turned heel, the team was dubbed as The Islanders, with Bobby Heenan as their manager. King Tonga was renamed Haku and The Tonga Kid became Tama.
The duo had some success and one of their biggest win was at WrestleMania IV when they teamed up with Heenan against The British Bulldogs and Koko B. Ware. The Islanders' actual push never happened, and they disbanded to put Haku in singles competition.
In June 1988, he became King Haku and he ran with that gimmick until he lost the crown against Jim Duggan in May 1989.
One might think that his reign was a nice reward, but he didn't receive the title of King Of The Ring after he won the traditional tournament. He simply claimed the crown after King Harley Race was put on the side due to an injury.
After his singles run, Haku teamed up with Andre The Giant and they won the Tag Team Championship, but it was the only title he won in WWF. After they lost the titles, Andre turned face, and Haku joined forces with the infamous Barbarian.
In no time, following that move, the tough man once known as King Tonga left the company to see if the grass was greener in WCW.
It was too bad to see such a good wrestler leaving like that. He was very agile for a 330-pound strongman, and his devastating karate kicks made a lot of victims but never for actual success.