"Pumped Up Kicks" by Foster the People
"Somebody That I Used to Know" by Gotye
"Eleanor Rigby" by The Beatles
"Every Breath You Take" by The Police
"Smooth Criminal" by Michael Jackson
"Praying" by Kesha
"Stan" by Eminem
"Behind Blue Eyes" by The Who
"Hurt" by Nine Inch Nails
"Semi-Charmed Life" by Third Eye Blind
basically, the songs have a consistent trend of the lyrics being traditionally about personal issues or genuinely f**ked up things, like murder, divorce, cheating, robbing from someone, e.t.c