reached #7 (This song was selected for a Macbook Air commercial that aired in the US.)
reached #29 (He apparently knows Soulja Boy, which is why this song sounds so much like "Crank That Soulja Boy.")
reached #21 (The son of a professional jazz musician, the band's name references the fact that all of his autobiographical songs are about his wife.)
Honorable Mention:
reached #37
reached #24