One Direction Vs Justin Bieber: ‘The Greatest Song Of The Decade Is…’

Earlier this Summer, we asked you to list a number of songs released between the year 2,000 and now that you felt deserved… ‘The Greatest Song of the Decade’ title.
Now, as September approaches, the list you put together now boasts almost 200,000 votes, with Michael Jackson‘s ‘You Rock My World’ sat atop the tally with almost 70,000 of those votes.
So, as both acts continue to make their way closer to #1, we ask the following:
Between One Direction‘s ‘That’s What Makes You Beautiful‘ and Justin Bieber‘s love song ‘Baby‘, which number do you feel made the most impact on their careers, and on a wider scale….Pop culture.
Vote for your favourite cut below!

The Greatest Song Of The Last Decade Is…