As much as I hate this mother fucking song, the lyrics are incredibly revealing.

Jay-Z beings with:

1. No clouds in my storms
2. Let it rain, I hydroplane in the bank (Rihanna: eh eh)
3. Comin’ down with the Dow Jones
4. When the clouds come we gone
5. We Rocafella (Rihanna: eh eh)
6. We fly higher than weather
7. And G5s are better
   
8. You know me
9. An anticipation for precipitation, stacks chips for the rainy day (Rihanna: eh eh)
10. Jay, Rain Man is back with little Miss Sunshine
11. Rihanna where you at?

Analysis:

1. No clouds in my storms seems to mean that whatever storm is being referred to will not have visible clouds to indicate it is coming. It is a silent storm.
2. Hydroplaning in the bank refers to the storm, so this must be an economic storm. Hydroplaning means coasting on the water of a storm.
3. Coming down with the Dow Jones? This song was released in 2007 way before the economic panic.
4. When the storm comes, we’re gone. Jay-Z meaning hes leaving before the financial crisis.
5. Rocafella is Rockefeller, as in David Rockefeller
6. We fly above the storm, we are not affected by the financial crisis, we are the David Rockefeller family
7. G5 can refer to a classification of Sun or Star. It is unknown what this refers to
8. [Self-explanatory]
9. Jay-Z has money saved for the financial crisis
10. The “Rain Man”, the creator of the storm is declaring his presence

So who is the Rain Man? Lets ask Eminem in his song “Rain Man”:

1. Cause I ain’t got no legs!
2. Or no brain, nice to meet you
3. Hi, my name is…
4. I forgot my name!
5. My name was not to become what I became with this level of fame
6. My soul is possessed by this devil my new name is….
7. Rain Man

Eminem is possessed by the devil and his name is Rain Man? Lets ask Gucci Mane in his song “Rain Man”:

1. rain rain rain this way
2. thats what all the strippas say
3. rain man go away thats what all these hatas say
4. imma rain man and i can make it rain i make it thunder storm
5. i make it hurricane

How about Jamie Fox in her song “Rain Man”:

1. baby cut my lights (cut my lights)back on (back on baby)take me I’m ours (take me I’m yours)
2. release me release me ohhhhh uhh ohhhh Rain Man,Rain Man, Rain Man

Lil Wayne’s “Rain Man” anthem:

1. Hey everbody say mr.rain man can we have rainy day?
2. Bring an umbrella please bring an umbrella ella ella ella

Let’s consult another one of Rihanna’s songs called Disturbia:

1. Why do I feel like this?
2. I’m going crazy now
3. No more gas, in the red, can’t even get it started
4. Nothing heard, nothing said, can’t even speak about it
5. On my life, on my head, don’t wanna think about it
6. Feels like I’m going insane, yeah
7. It’s a thief in the night to come and grab you
8. It can creep up inside you and consume you
9. A disease of the mind, it can control you
10. It’s too close for comfort

It seems Rihanna and Eminem, and other popular artists are affected mentally by “Rain Man”.