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We've already seen some massive anthems dominate the Vodafone Big Top 40 but which of this year's releases have been the most popular?
Not only is this sing absolutely stunner, the video stars Gigi Hadid and we've had it on repeat since it was released #LoveHER!
It's never too late to say 'Sorry' Justin! 'Purpose' served up SO many hits and we're pretty sure this won't be the only time you see JB.
When this fab-four broke into the mainstream with their hit 'Shut Up And Dance' we took their instructions literally and haven't stopped dancing since.
When you put these three artists in a sentence, it just should't work. But low and behold the iconic trio produced something very special indeed.
Belgian DJ Lost Frequencies came out of absolutely nowhere to claim a spot of the hearts of Capital listeners. Simple, catchy and pure dance heaven is sometimes all you need.
Jason Derulo held the No.1 for FOUR weeks with this single so it only makes sense that he holds a place in the top 20 songs of 2015.
Anything Justin Bieber touches turns into gold and here is just another example. Skrillex and Diplo hired in the pop mega-star to provide vocals on this HUGE track.
She's already bagged a No.1 her Route 94 and Clean Bandit collaborations however it is her solo smash hit 'Hold My Hand' which bags a place in the top selling singles of 2015.
What's better than Adam Levine? Adam Levine in a tux of course. 'Sugar' is one of those songs that you still find yourself singer weeks after you first heard it and look how dreamy he is in the video…just look at that face!
We have another Vodafone Big Top 40 No.1 people! Justin Bieber's new musical direction wowed both #Beliebers AND #Non-Beliebers and we wouldn't want it any other way.
We still get a little teary eyed when we hear this. If Ed had a pound for every time this was played at a wedding he'd be a millionaire…he probably is one already but that's besides the point.
They are undoubtedly the hottest new band on the scene this year and their single 'King' captured the Vodafone Big Top 40 No.1 only hours after its release, wowzers.
Another 2015 breakthrough artist is James Bay and boy is this song an instant classic. His new album 'Chaos and the Calm' is out now and you should ALL be listening to it.
It came out of nowhere and we ALL fell in love with it. Adele's comeback was one of the biggest moments of 2015 not just in music but the world!
What happens when you get Major Lazer, DJ Snake and MØ in a room? One of the catchiest songs of 2015 of course. 'Lean On' has been a constant fixture of the charts this year and we can't get enough of it.
Wiz Khalifa's 'Furious 7' soundtrack spent a MAMMOTH three weeks as the top single in the country.
This song was so popular that Ellie was the only artists to top the chart for the ENTIRETY of February this year. #Boss
It may have taken Hozier's breakthrough hit almost two years to score a place in the Vodafone Big Top 40 but when it did it stuck around for a LONG time. Hozier, we salute you.
Omi's breakthrough hit 'Cheerleader' officially became the 2015 song of the Summer after it nabbed the Vodafone Big Top 40 No.1.
Of course this is No.1. Could it have been any other track? Not only did it break the all time record of weeks at No.1 of the Big Top 40, it's been covered by hundreds and even parodied by Voldemort. Congratulations Mark & Bruno, we love you.