Outsider and K.Will had an awesome collaboration stage on MBC's Music Core last night. Check it out for yourselves: Video Credits: jaeuraznmv1 I always knew that K.Will was an exceptional singer, but to be able to keep up with Outsider's rapping like that is something that is truly amazing. Who knew he had it in him? K.Will has been practicing for about 2 weeks for this performance, and he's received many praises from Outsider himself who has said "Your rap is the most accurate and fast from all the people who have tried.” K.Will is someone of true talent and of true underratedness (not a word, I know) so I hope that this performance helped boost his fan base. Great job K.WIll! Thanks to MissLeeAra for the tip!