Thank goodness for iPad apps. On Thursday nigh's ‘Tonight Show,’ host Jimmy Fallon -- who grows more California by the minute, as the show has temporarily relocated to the West Coast -- and guest Will Smith decided to finally give the people what they want: rapping.

Well, sort of.

Using some sort of magical iPad app (they are all magical, right?), the duo was able to pretty effectively layer their beats to turn out a very impressive, mostly polished jam.

Fallon's love for rapping and Smith's actual career in rapping mixed surprisingly well together, and the result was a highly danceable computer-created beat. If we get that iPad app, will Smith sing with us? Maybe?

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