You'll Be Back from Lin-Manual Miranda's musical Hamilton (released October 16, 2015) is heavily influenced by several Sixties' pop songs including The Beach Boys' God Only Knows (released July 11, 1966), The Beatles' Penny Lane (released February 13, 1967), and the Turtles' Happy Together (released February 14, 1967). You'll Be Back borrows the staccato quarter note keyboard (harpsichord) part from God Only Knows, as well as the Wrecking Crew's muted bass line and bouncy drum groove (present in the Beach Boys' California Girls as well). You'll Be Back's glee club "da da da" vocals in the chorus are also similar to God Only Know's middle section vocals, and Happy Together's "ba ba ba" vocals, while YBB's guitar part (around 3:00) and pizzicato strings are similar to Penny Lane.
The verse to Justin Bieber's hit Love Yourself (released November 9, 2015, and co-penned by Ed Sheeran and Benjamin Levin) uses a variation on a standard blues/ragtime chord progression first popularized by Bessie Smith in Nobody Knows You When You're Down and Out (released September 13, 1929), versions of which have been recorded by Eric Clapton, The Allman Brothers, Janis Joplin et al.
Love Yourself (:10) VS Nobody Knows You When You're Down and Out (:11)
E, B/D#, C#min (I-V-vi)
F# min, E, B/D# (ii-I-V)
Nobody Knows You When You're Down and Out
C, E7, A7 (I-III7-VI7)
D min, A7, D min (ii-VI7-ii)
While the verse to Maroon 5's Won't Go Home Without You (released November 19, 2007) may have been patterned after the Police's Every Breathe You Take, Adam Levine seems to have borrowed the song's chorus from Don McLean's poignant paean to Van Gogh, Vincent (released June 17, 1971). While in different keys (WGHWY: Eb; Vincent: G), both choruses share close relative vocal melodies and the same relative chord progression.
Won't Go Home Without You (1:10) VS Vincent (:00)
Won't Go Home Without You
Chorus Chord Progression:
Eb, F min, Ab, Bb, Eb (I, ii, IV, V, I)
Chorus Vocal Melody:
1-1-6-5-6-1 ("It's not o-ver tonight")
5-5-5-6-5 ("Just give me one more")
2-3-2-6-2 ("Chance to make it right")
6-6-6-7-6-2-3-2 ("I may not make it through the night")
3-2-1-6-1-2-1 ("I won't go home without you")
Chorus Chord Progression:
G, A min, C, D, G (I, ii, IV, V, I)
Chorus Vocal Melody: 5-6-1-2-3 ("Star-ry, star-ry night")
3-2-1-6-2-3-6 ("Paint your pallette blue and grey")
3-2-1-6-2-3-6 ("Look out on a summer's day")
1-1-7-6-5-6-7-1-2-3 ("With eyes that know the darkness in my soul")
The chorus vocal melody for Tears for Fears' Mad World from their debut album The Hurting (released September 20, 1982) echoes the bridge vocal melody to Yusuf Islam's (the artist formerly known as Cat Stevens') Matthew and Son, the title track from his debut album (released March 10, 1967). Both sections feature the same exact melody over a ii-V (or minor2-5) chord progression, though in different keys (MW: E major; MaS: D major). Fun side note: Matthew and Sons features uncredited Led Zeppelin bassist John Paul Jones.