The Most Important People Who Were At Apple's Biggest Event Of The Year

Last Monday, Apple revealed a major overhaul to the iPhone's software at its Worldwide Developer Conference (WWDC).

We were on hand, and one thing that stood out was how many big names in tech were at the keynote. WWDC is the the place to be seen. 

We've rounded up some of the people that were in attendance, and why they're important. 

Marissa Mayer, CEO of Yahoo

Mayer took over Yahoo last year and set one big goal for the company: Get bigger, get better in mobile computing. Hanging out with Apple execs is a smart way to make that happen. 

Yahoo is also a key Apple partner, it provides data for Apple's weather app, sports information for Siri, and now Flickr is integrated into iOS.

Evan Siegel, CEO of Snapchat

Snapchat is the hottest app on the planet right now. It just raised $100 million in funding at a $500 million valuation. If you're unfamiliar with it, it lets you send a photo to a friend, and the photo erases after a few seconds. 

Dave Morin, CEO of Path

Path is a social networking app built for mobile phones. Morin was right up front standing near the stage talking to Apple CEO Tim Cook before the presentation.