iTunes Playlist: "summerrap"

The goal here is to compile a playlist (first mentioned here) that I can put on shuffle that would perfectly score sitting on my porch drinking a beer on a sunny June afternoon. Or perfectly score a mid-July pool party. That sort of thing. It's a work in progress. What the list so far has told me is that I consider the following characteristics to represent "summer":

1. High-pitched vocal hooks
2. Horns
3. Just Blaze production
4. Jay-Z
   

Suggestions welcome.