Alfonso, you've changed
Do you remember back during Fresh Prince that Will was the athletic one and Carlton was the geek? Of course, even though that was their characters, you could tell by looking that Will was just a thin kid and Alfonso was actually quite square and muscular from dancing.
These days, Will has the muscle from playing Ali and other action roles, and Alfonso seems to have replaced his muscle with a little chub.
Okay, that's the second celebrity dueter I've picked on now for being chunky. I need to be nice.