The pop star won best male, best North American act, best collaboration for Where Are You Now?, with Skrillex and Diplo, biggest fans and best look.

One Direction won the prize for best pop, Taylor Swift's Bad Blood won best song and Rihanna was named best female.

Singer-songwriter Ed Sheeran hosted the ceremony in Milan on Sunday - and took home the prize for best live act.

He also won the best world stage award for his performance at last year's V Festival.

Accepting his best male award, Bieber said: "It's been a long couple of years, um, I just feel like this is pretty awesome to be recognised for my music."

He has had a number of legal run-ins, including being arrested last year on suspicion of driving under the influence.

Sydney pop punk band 5 Seconds of Summer scooped the Best Worldwide Act (Australia/New Zealand) award for the second year in a row.

The She's Kinda Hot singers, who supported One Direction on their Australian tour, thanked their fans via video message.

Ruby Rose, fellow Australian export and star of Orange is the New Black, opened the MTV EMAs alongside Ed Sheeran.

The winners:

Best song - Taylor Swift featuring Kendrick Lamar: Bad Blood
Best pop - One Direction
Best female - Rihanna
Best male - Justin Bieber
Best live act - Ed Sheeran
Best new act - Shawn Mendes
Best video - Macklemore & Ryan Lewis: Downtown
Best rock - Coldplay
Best alternative - Lana Del Rey
Best hip-hop - Nicki Minaj
Best electronic - Martin Garrix
Best push - Shawn Mendes
Best collaboration - Justin Bieber, Skrillex, Diplo: Where Are You Now?
Best look - Justin Bieber
Biggest fans - Justin Bieber
Best world stage - Ed Sheeran V Festival, Hylands Park, UK 2014
Video Visionary Award - Duran Duran
Worldwide act: North America - Justin Bieber
Worldwide act: Australia and New Zealand - 5 Seconds of Summer
Worldwide act: Latin America - Anitta
Worldwide act: Europe - Marco Mengoni
Worldwide act: Africa/India - Diamond Platnumz
Worldwide act: Asia - Jane Zhang