I’m Up To Something — This is yet another Khaled-ism. There is the literal definition of "I’m Up To Something" which is Khaled working on something. But usually when Khaled says this phrase he is up to something special. Something that will be big. It is a way for him to tease out something he is working on without getting too specific. At times, Khaled will show a preview of that "something" when saying this. It could be a magazine shoot, a music collaboration or something else.
That’s all I’ve got. I can add more if I’m missing anything. Now you know how to speak Khaled.