T.I. Reveals Diddy Gave Him 'Castle Walls'

According to T.I., Diddy offered up the track "Castle Walls," featuring Christina Aguilera, for the Atlanta MC's album No Mercy.

The Alex da Kid-produced record was originally slated for Diddy-Dirty Money, before the Bad Boy mogul thought it would be better for T.I., considering his tribulations.

"A funny thing about this record: It belonged to my big homey Puff first," Tip explained in an exclusive interview on "RapFix Live." "Puff, he acknowledged it, 'Yeah, this is my record, but you know what, I think this is a better fit for you. I think you should rock out on this one. I think this speaks volumes to where you are, what you going through, what you living and how you feel.' "

So, Tip took the track and penned a personal ode to his life, which has become clouded with controversy in the past year as the beloved star has exited and re-entered prison.

"See with the Phantoms and Ferraris in the driveway/ But you see it came in exchange of a sane man's sanity," he rhymes on the song. "Your vision jaded by the Grammys on the mantelpiece/ Just switch your camera lenses, you will see the agony."

The embattled rapper explained the song's inspiration: "I live the life that most would die for, but there's a lot of things that come with this life. People don't take that into consideration. There are a lot of things in this life that I would trade in a minute just for a slice of normalcy.

"I just listed a few things that they probably never viewed from that particular perspective," he continued. "Because I think people need to see things another way; they need to see it other than just celebrity."