I wasn't. I was just surprised to see them mentioned as such, since they're arguably the biggest rap group ever.

No, they're not underground. I mentioned them because it doesn't matter if they are or aren't.

captain awesome, I didn't mean to confuse things, I like the rapping, the lyrics and the music track.

I posted some videos for you to check out, handpicked because of their hooky beats.

I am have heard that dilated peoples song (I think I remember it when it first came out) and of course I know public enemy but thanks.

I would post some suggestions but it depends what you mean by catchy. What you find catchy and a good beat might be different from what i find good lol

Andre 3000
Eminem
Jay-Z
Tupac

1. Tupac
2. Jay Z
3. The Notorious B.I.G
4. Ice Cube
5. Eazy - E
6. MC Ren
7. Big L
8. Dizzee Rascal (before he went mainstream)
9. Vinnie Paz
10. Eminem

1. Jadakiss
2. David Banner
3. Eminem
4. Dr. Dre
5. Ice Cube
6. Cam'ron
7. Hell Rell
8. Jay-Z
9. JR Writer
10. Classified

In no particular order

Ghost Face from Wu Tang
Slug from Atmosphere
A Tribe Called Quest in its entirety
Jurassic Five in its entirety
The Roots in its entirety
Edan
Del the Funky Homosapien
Eyedea(If only for his freestyle)
Jedi Mind Tricks in their entirety
Nas

I based my choices on the skill of their word play and lyricism, pretty much the only thing I care about when it comes to hip hop.