Have you seen "Laura's New Civic," the Honda Civic ad featuring a young girl named Samantha who writes to Honda about blackmailing her older sister Laura into letting her listen to her music in her new car by implicitly threatening to expose Big Sis's weekend plans to their parents? It's not a particularly great commercial, and the idea of a young girl writing a letter to a big car company is sort of a weird framing. (Not to mention the ridiculously large winter headband Samantha wears, which makes her look like she's about to play straight sets in the frozen tundra.)

But one small part of the commercial is oddly, undeniably brilliant—the song that Samantha puts on her iPod once having parlayed her sister's personal info into getting the royal automotive treatment. The song is a chirpy, obviously kiddie-focused pop number entitled "Tuesday is the Best Day of the Ever," by a duo named Alicia and Sarah.

We'll save you the trouble of Googling for it—"Tuesday is the Best Day Ever" is not a previously existing song, nor are Alicia and Sarah a real-life teen-pop duo. (There probably exists an album called Happy out there somewhere, but it may or may not be spelled out with loose cassette tape on its cover.) Though instantly fascinating and even sort of catchy for a two-second piece of music, there's no full-length version of "Tuesday" to be found out there. (Much to the consternation of the video's YouTube commenters: "WHERE IS THE SONG THAT SHE DANCES TOOOO!!!!!!! I MUST HAVE IT!!!!!!!!!!" demands user fix520, while Ricksonkimura confirms, "Everyone loves that Tuesday song!")

So what the hell is this song? Well, info on the Web is scant, but searching for the title revealed the webpage of one Jeremy C. Simon, commercial music composer, who has also done work on a number of other Honda commercials, and a "Funny or Die" clip entitled "Bethlehem, PA." We reached out to Simon, in the hopes of finding out the story behind the song—to satisfy our own curiosity, if nothing else.

"The creative team at the [advertising] agency—RPA in Los Angeles—wrote the lyrics," Simon tells us of "Tuesday." "They do bear a resemblance to "Friday", but the actual musical reference tracks were more along the lines of Carly Rae Jepsen and Ke$ha. They wanted that modern string-heavy Eurobeat pop sound. It's really fun music to produce."

OK, but the song must have had something to do with "Friday," right? Why else would you write a fake song about Tuesday being the "best day of the week" or "best day ever" when no kid has ever said either thing about Tuesday, ever?

"Oh yes, totally. I was trying to downplay the obvious reference," admits Simon. "The track is meant to a be a combination of several pop genres going on right now. The words are clearly a reference to the lyrical vacuity of songs like 'Friday.' But the beat is closer to Ke$ha, who is an artist I really respect."

Us too, Jeremy. So who are Alicia and Sarah, then? And who actually recorded the song?

"Alicia and Sarah are the incredibly talented creative team at RPA, who I've had the pleasure to work with on a number of commercials," explains Simon. "It's a little known trade secret that every time a fictional name appears in an ad, it's almost always a member of the agency or client team's name. It's to avoid getting sued by an actual Alicia & Sarah pop duo, but also a nice little Hitchcockian way for the creators to appear in their own work."

Makes sense. As for the song itself, Simon and RPA "recorded the track at Atomix Studio in Van Nuys, Los Angeles...the singer is Samantha Shelton. She was in a music duo with Zooey Deschanel for a while, and appeared on the Inglourious Basterds soundtrack (edit: "The Man With the Big Sombrero"). She is a total pro, very versatile, and great fun to work with." Listening to the Basterds song, he's right about the versatility thing for sure:

All right, so one mystery remaining: Where can people find a full-length version of this damn song? One must exist somewhere, right?

"I have had a number of people get in touch asking about a full-length version of the track," relates Simon. "They are going crazy trying unsuccessfully to track it down online. There aren't plans to release a full length just yet, but maybe we should just to put them out of their misery."

Uh, yes please. "Tuesday is the Best Day Ever" might be the best fake two-second pop parody of the year, but we can only replay it so many times before frustration wins out. We need a full-length version, stat. "Everybody's looking forward to the Hump Day, Hump Day..."