John Mayer flashed a bit of a smirk arriving at LAX yesterday, just in time for the Oscar appearance he revealed to us this week. He's looking great already, but there's certainly some primping to do before being an "Oscar boyfriend" to Jennifer Aniston on Sunday. Since an Armani suit is as comfortable as pajamas for Mr. Mayer, it shouldn't be too hard to look perfect for the occasion. John isn't the only one who will be enjoying his first time at the Oscars — we're headed down to cover the big event and we'll be keeping you updated the whole time. Check back on Sunday as we update throughout the day on top of Pop, Buzz, Fab and Bella's usual live red carpet coverage!