Tosh.0 featured girls from a fan reaction video to David Archuleta's American Idol loss years ago. They were promised they'd meet the teen idol, but ended up being served his head in a box—just like in Seven.
Here's the video that started it all:
So, Daniel Tosh invites the girls onto his show to "redeem themselves" and promises that they'll meet David Archuleta.
Finally, the girls get to "meet' their idol.