SONG TITLE – PEAK – YEAR – SALES*

1. What About Us (Ft Sean Paul) – 1 – 2013 – 400,000
2. Up – 5 – 2008 – 350,000
3. Ego – 9 – 2009 – 350,000
4. Higher (Ft Flo Rida) – 10 – 2010 – 330,000
5. Just Can't Get Enough – 2 – 2009 – 280,000
6. Issues – 4 – 2008
7. All Fired Up – 3 – 2011
8. Missing You – 3 – 2010
9. Notorious – 8 – 2011
10. Forever Is Over – 2 – 2009
11. Disco Love – 5 – 2013
12. Work – 22 – 2009
13. If This Is Love – 8 – 2008
14. 30 Days – 7 – 2012
15. Gentleman – 14 – 2013
16. My Heart Takes Over – 15 – 2011
17. Not Giving Up – 19 – 2014
18. Chasing Lights – N/A – 2008
19. Lose Control – N/A – 2009
20. Fall – N/A – 2008

*Sales were only provided for their top five best selling songs

The rest are not at least silver I'm guessing?

Wow.

Poor Not Giving Up.

Not Giving Up is their first single not to sell 50,000 units, which is understandable considering it was released for the fans and received very little promotion. That means that every song above Not Giving Up on the list sold at least 50,000 copies. And the three songs below it weren't even singles.

Issues, All Fired Up and Missing You are Silver, Forever Is Over will get there eventually.
Disco Love, Work, Notorious sold 120-150k
30 Days 100-120k
Gentleman, MHTO and Not Giving Up bombed

Yes at Ego being in the top 3. One of their best singles. Wish All Fired Up was higher though.

"Work" sold more than Top 10's "If This Is Love" and "30 Days" but missed the Top 20

These three deserved to flop
Up, Issues, JCGE, Ego, Missing You, Higher and All Fired Up are all Silver by the way
http://www.bpi.co.uk/certified-awards/search.aspx
Notorious and Disco Love should have been higher

What About Us (Ft Sean Paul) – 1 – 2013 – 400,000
Up – 5 – 2008 – 350,000
Ego – 9 – 2009 – 350,000
Higher (Ft Flo Rida) – 10 – 2010 – 330,000
Issues – 4 – 2008

Their best songs tbh