T.I.'s recent jail sentence was a major promotional hindrance for his seventh release, 'No Mercy,' but the album still made a dent, debuting at No. 4 on the Billboard charts after its Dec. 7 release.

The album, previously titled 'King Uncaged,' moved 159,000 units and also landed at the No. 2 spot on iTunes charts, prompting TIP to thank fans from prison via his blog. "What up world? First off I'd like to thank everybody again for going out and supporting the 'Hustle' yet again with 'No Mercy' last week," he wrote, in an entry posted on Wednesday. "I can't say enough on how much I appreciate the support and all the positive feedback."

"I read so many tweets, letters, reviews and comments that spoke volumes to how much love was still out there and how much respect still exists for my art and my passion," he continued. "I put so much of myself into what I do. I even read over the negative comments cuz' that's the kind of energy I feed off of to adjust, evolve and improve my craft until it manifests into the closest thing to perfection on the next go-round. I love hearing your opinions on what songs you like most for the next singles. We are taking all of them into consideration as we decide right now on which direction to head in."

T.I. is currently serving an 11-month sentence in an Arkansas jail, after the violating the terms of his probation stemming from a 2007 weapons possession case. He is scheduled for release in October of 2011.