KSI.Much to their surprise, singing sensation KSI came up behind them leaving the duo bewildered.He said: "I just wanna say how proud I am of both of you.
You're both strong-minded and strong-willed."As the pair were left in utter shock, viewers took to Twitter as they shared their thoughts on the emotional scene on stage.One user wrote: "Been forced to turn over because I'm too emotional for this s**t.
I'm crying at KSI! FFS."Another said: "How adorable are these two boys, singing away with KSI."A third person wrote: "This is one special friendship.
Hugo and Freddie definitely deserve the award and this performance from KSI!"Aside from the rapper's debut on the stage, he welcomed out Sir Mo Farah who also presented an award, before KSI.