Wow, unless I overlooked something, I'm surprised no one mentioned Bernard Purdie and Chuck Rainey. They really hook up on that Aretha Franklin album "Live At The Filmore West" I mention these guys because although a lot of guys have recomended some great Jazz guys which I love, but you said you were checking out Flea and Chad so in that vein but more Funk/R and B and less Rock, these guys on that record are the shit.. Ray Charles is also on that recording plus King Kurtis.. They cover "Love The One Your With" and there is this Break that Purdie does that is soooo bad ass and then Rainey kicks it in and it's ridiculous..Hope you check it out and like it..