"Here's the story: it's a true story," Colbert explained to the audience. "We booked Click and Clack over here about a month ago. This network is owned by Viacom, which is also the owner of MTV

"� Apparently, Daft Punk are going to make a surprise appearance on the MTV Video Music Awards. Don't tell anyone, because fun fact: no one told me until two hours ago."

Along with Daft Punk's not-so-secret appearance, this year's MTV VMAs, airing August 25, features performances from Kanye West and Lady Gaga, who will debut the first single off her upcoming album, ARTPOP.

But Daft Punk's loss was certainly Robin Thicke's gain. The singer, who just happened to be sitting in the audience, was able to fill in with his own Pharrell-assisted summer hit, "Blurred Lines." For professional and personal reasons, Colbert then crowned the single, the official song of the summer.