Watch: Justin Bieber Surprises Fans At Ariana Grande Concert

If we could choose two of the biggest stars we'd want to see on the stage at the same time it would be these two. Justin Bieber joined Ariana Grande on stage at her gig in Miami on Saturday 28th March.

Ariana Grande is one of the biggest selling female solo artists in the world right now and Justin Bieber is probably the biggest star in the entire music industry. So imagine how excited we were when we found out the pair emerged on stage TOGETHER at Grande's concert in Miami, Florida.

No stranger to social media, Biebz teased his legion of fans with this VERY cryptic tweet:

It seemed like fans of both Grande and Bieber had a good idea of what was to come however when it finally happened, the result was magic. The duo performed Bieber's 2013 hit 'All That Matters' and the crowd went WILD. 

 

Pleased with their work, both Ariana and Justin took to their Twitter accounts to talk about the performance: