What's The One Thing You Keep Searching For But Can't Find Online?

On a road trip about four years ago, I heard this great song on the radio. It was unique, catchy, and it stuck in my head. Ever since, despite Googling the lyrics, humming the melody to SoundHound, and poring over Youtube, I still can't identify it. It's my internet white whale. What's yours? » 1/18/14 5:00pm 1/18/14 5:00pm