Ashlee Simpson? Where's Ashford & Simpson?!

5/8/2008 7:38 PM PDT BY TMZ STAFF
Poor Ashlee Simpson got one woman's hopes down at LAX today, expecting to see the duo behind "Solid" and not the chick who sang "La La."

Pete was there too ... and wait 'til you hear what he said their wedding theme will be. Here's a hint: No food after midnight.