Crossword puzzle clue "org that got the theme song for serial stuck in your head for the rest of the day"

Org. that got the theme song for "Serial" stuck in your head for the rest of the day

All-in-one breakfast foods popularized by a song from "Adventure Time" (having it instantly get stuck in your head will be your punishment for cheating and Googling it)

More likely to get stuck in your head, say

Like songs that get stuck in your head

First day of the rest of your life

Thé, basically