Ninja and Sidhu Moose Wala are two big names of the Punjabi Industry. And the news of these two coming together is something that has made people excited since last month. Both the singers sing in totally different genres and have only brought best of the best songs. Whether it is Sidhu Moosewala's recently released Just Listen or Ninja's Roi Na both the songs have their own beauty and was one of the hits of 2017. But 2018 is going to be a bigger year with two of them together in a song which is titled as 'Challenge'. The song not only has Ninja and Sidhu Moose Wala but music producer BygByrd has given the music to the song. So, get ready get the whole Brown Boys feeling. The title of the song itself sounds strong and looks like something really challenging is on the way. Well, to get an idea of what the song is about Gabruu.com has brought some exclusive pictures straight from the sets of 'Challenge'.