I believe LL had a nose job. The reason I say this is because, when LL first came out (the days of Rock the Bells), he was very small (smaller than he is now), but his nose was still wide and full. Over the years, he started putting on weight, but his nose still remained the same. Now, his nose is longer, and a littler slimmer. It's now a completely different shape.

Losing weight can only make your nose shrink, or get larger, but it cannot make a nose completely change it's shape, which is the case of LL. I was even watching one of his movies, where he plays a DJ, and his nose was wide and full. It was a completely different shape from what it is now. I say he has a nose job.

But who cares about his nose. He gets two thumbs up for the total package.