YouTube have revealed their most-watched music videos of 2016 and Fifth Harmony have topped both the UK and the world's most-viewedlists with their Ty Dolla $ign collab'Work From Home'.

Harmonizers and the world alike it seems couldn't get enough of the steamy video, the first to drop from their albm '7/27 'released earlier this year, whichracked upover a BILLION views. Pretty incredible, right?

Earlier this year 'Work From Home' also earned the group a VMA for 'Best Collaboration, an AMA for Collaboration Of The Year as well as the Choice Summer Song at this year's Teen Choice Awards.

2016 slayed.

YouTube'sMost Viewed Music Videos Of 2016:

1. Fifth Harmony Ft. Ty Dolla $ign- Work From Home

2. Calvin Harris Ft. Rihanna - This Is What You Came For

3. Hasta el Amanecer - Nicky Jam

4. The Chainsmokers Ft. Halsey - Closer (Lyric Video)

5. Rihanna Ft. Drake - Work

'Listen to your favourite tracks no matter where you are with the MTV TRAX music app. No ads, no limits, no monkey business. Download it now for FREE at mtvtrax.com.'