As announced on August 7, 2015 in the Hollywood Reporter, Dr. Luke is being sued by New Old Music Group for allegedly copying the opening breakbeat for Jessie J's Price Tag (released January 25, 2011), which Luke co-wrote and produced, from Black Heat's funk song Zimba Ku (released 1972). Have a listen.
Christina Aguilera's and Blake Shelton's country pop duet Just a Fool (released December 4, 2012) is reminiscent of R.E.M.'s alt rock hit Everybody Hurts (released April 15, 1993). Both songs feature a similar verse rhythm guitar part and chord progression set in 6/8 time.
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.