Larry King Ryan Seacrest Picks Out My Clothes

6/30/2012 3:30 AM PDT

There's a reason Larry King always looks like a million bucks -- the news icon tells TMZ, Ryan Seacrest personally picks out his flashy duds.

78-year-old King was at LAX last week with his wife Shawn ... and we asked the question on everyone's mind ... HOW DOES HE STAY SO SHARP?

The King's secret -- Ryan Seacrest picks out most of his jeans.

As for who buys the rest of King's clothes -- the answer may come as a surprise ... then again ...