UPDATE!: I stand corrected on the idea that Kobe Bryant and/or Mos Def had anything to do with the "Power (Remix)." As we all know by now, Jay-Z and Swizz Beatz are featured on the record (which debuted Thursday night on the web), and it is already gaining a high volume of radio-play throughout the nation.
Necole Bitchie originally reported that Kobe and Mos Def were helping Kanye finish the "Power (Remix)," but mentioned NOTHING about the two being featured on the record. I guess I got a little carried away =/
Though the title (for my article) simply says that they are "work[ing] on" the remix together, a lot of people thought that they would all be featured on the record and for that, I apologize.
Despite my inaccuracies, fans may listen to the actual "Power (Remix)" HERE!
...Don't worry, Yeezy fans. You'll fall in love with in it one listen, no matter the people on the record.