Karan Johar's looking really dapper lately, with a trim body and a chiselled face — his weight loss is grabbing a lot of attention. And media's favourite boy loves that, doesn't he? The friendly dude is most eager to disclose his diet secret to anyone who needs a tip or two. No wonder the dashing lad is giving our other Bollywood boys a run for their money, as far as brand endorsements are concerned. A youth icon like him is touted as the perfect brand 'fit' for the corporate world. The screen-idols better catch-up soon, Karan is stealing the show. That's what they call 'healthy competition', right Karan?