I agree, most of these programs (e.g. Kellogg's MMM) are designed for the Juniors/Seniors in college that would secure your admission before graduating from the undergrad.
You will have to apply the usual route I believe, though you are always welcome to check with admissions. They are quite swamped (and out drinking) right now, but usually fairly responsive and good when they are not replying to the tedious (when-will-I-hear-from-you and will-I-get in type of questions).
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