Meghan Trainor's hit "No" (released March 4, 2016) is reminiscent of several 90's tracks including TLC's "No Scrubs" (released January 23, 1999), and Christina Aguilera's "Genie in a Bottle" (released June 22, 1999).
The verse vocal melody to Lil Wayne and Charlie Puth's Nothing but Trouble (released June 29, 2015) is similar to the verse vocal melody to DeBarge's All This Love (released January 7, 1983). While in different keys (NbT: E; ATL C#), both melodies share the same relative contour, and are sung in the same falsetto vocal style. Thematically and lyrically, the songs are also similar (NbT: "For all of these problems" VS ATL: "I had some problems"). Interestingly, El DeBarge wrote All This Love "in hopes then-label mate and longtime idol Marvin Gaye would record it" [source: Wikipedia]. Puth is also a huge Marvin Gaye fan, as evidenced by his song of the same name.
Nothing but Trouble (:00) VS All This Love (:10)
Nothing but Trouble
C#min, C#min/B, Bbmin7b5, Amaj7
Verse Vocal Melody:
1-3-4-3-2-3 ("I'm facing the bottle")
1-3-4-3-2-1 ("For all of my problems")
6-3-4-3-2-3 ("These Instagram models")
5-3-4-3-2-1-6 ("Are nothing but trouble")
All This Love
Bmin, F7, Bmin, F7, Bmin, F7, Bmin, F7/C
Verse Vocal Melody:
3-2-6-1-2 ("I had some problems")
6-3-4-3-2-3-1-2 ("And no one could seem to solve them")
Demi Lovato's Dance-Pop single Really Don't Care (released May 20, 2014) seems closely modeled after Swedish duo Icona Pop's breakthrough hit I Love It (released May 9, 2012). Similarities include: verse vocal melody/rhythm (RDC starts on a G note, ILI starts on an Ab--only a half-step apart), theme (defiance to a former lover), lyrics ("I don't care" VS "I really don't care," "stars and moon collide" VS "down on earth, but I am up in space"), and production elements (drum beat/synth). Both song's verse vocal melodies start on the "and" or second eighth note of the first beat, and stay on the same note--emphasizing the upbeat--for the rest of the measure and most of the following measure. The final four notes of both melodies have the same exact rhythm (RDC: "[...] have it a-all"; ILI: "[..] you were g-one"). Finally, the pre-chorus vocal melody of Really Don't Care (which starts with the line "But even if the stars and moon collide") is tonally/rhythmically similar to the intro/chorus vocal melody to Pat Benatar's 80s smash Shadows of the Night (released September 30, 1982) i.e. "We're running with the shadows of the night [...]."