I'm not sure when the last time was, but I'm pretty sure this is still happening.. constantly. So I would say.. today?

Someone else mentioned Madlib and also Jake One as producers who do this pretty frequently. They also mentioned KRIT as always producing for himself. He should be producing entire albums for others: Bun-B and/or Scarface would be good ones.

Black Milk did this for Random Axe, Black & Brown, himself, and for Elzhi. He should probably do an entire Royce album.

Exile does this a lot.. for himself, Emanon, 2 albums for Blu, and Fashawn's "Boy Meets World" (which was great, BTW).

I would love to hear a big name like Jay-Z over all PUTS production on an LP.

..the same for someone like NAS over all Oddisee production.

It will never happen, but whatever.