Follow the song, with vi, ii, and iii

I–IV–V–vi. vi takes I's place at the landing.

I–V–vi–IV. The most common progression in pop.

vi–IV–I–V. The pop loop started on vi.

I–vi–IV–V. The pop loop's four chords with vi second.

I–ii–V–I. ii takes IV's place before V.

I–IV–ii–V–I. IV, then ii, then V. One note changes between them.

ii–V–I–vi. The fall to V, then I, then the minor home.

I–ii–vi–IV. ii goes to vi instead. Away, no pull.

I–iii–IV–V. iii takes the second I, then rises into IV by half steps.

I–iii–vi–IV. The pop loop with iii for V. In C, E falls a fifth to A.

I–iii–vi–V. Home, the stand-in, the minor home, then the pull.

IV–I–iii–vi. Can't Help Falling in Love, from IV: I, iii, vi.