The chorus to John Legend's breakthrough ballad All of Me (released August 12, 2013) bears some resemblance to the chorus to Village People's disco anthem Y.M.C.A. (released November 13, 1978). With the exception of the third chord, both choruses have the same relative chord progression (Y.M.C.A. is in the key of Gb, while All of Me is a whole step higher in the key of Ab). Likewise, relative to each song's key, chorus melodies have similar contours (Y.M.C.A.: 3-5-3-5-3-5 "It's fun to stay at the [...]"; All of Me: 3-5-3-6-3 "'Cause all of me loves [...]").
Y.M.C.A.: Gb-Ebmin-Abmin-Db (I-vi-ii-V or 1-6minor-2minor-5)
All of Me: Ab-Fmin-Db-Eb (I-vi-IV-V or 1-6minor-4-5)
The chorus to French DJ/producer David Guetta's single Dangerous featuring Sam Martin on vocals (released October 6, 2014) seems to have been inspired by the chorus to Nirvana's grunge anthem Smells Like Teen Spirit (released September 10, 1991). Both the chorus chord progression and chorus vocal melody to Dangerous is similar to those found in SLTS. There is also some lyrical similarity. Compare the lines, Dangerous: "I don't know where the lights are taking us, but something in the night is dangerous," with SLTS's line "Let me out now, this is dangerous/Here we are now entertain us."
As a musician and composer, I’m often struck by similarities between pop songs. If you’ve ever listened to a tune on the radio and thought to yourself, “this sounds really familiar,” or “what does this melody remind me of,” (or more bluntly, “this song is a rip-off of …”) then you have shared in the experience.