Gwen Stefani and Pharrell Williams' working relationship dates back to their first collaboration on the hit No Doubt record Rock Steady in 2002. Since then Williams has worked his producing magic on a number of No Doubt and solo records for Stefani. 

Now the pair will be travelling to Doha, Qatar, together to stage two separate performances as headline acts at the Men's Handball World Championship 2015. The bill doesn't make any promises for a dual performance as the schedule shows Pharrell Williams taking to the stage on Thursday January 22 after a match between Russia and Denmark, and Gwen Stefani performing on Saturday January 24 after a match between Denmark and Poland.

Following a season together on The Voice in 2014, the pair couldn't resist going into the studio and recording another track together called Spark the Fire and with so many collaborations in their respective repertoires, we are harbouring secret hopes that they might hit the stage together on one of the dates...