Dark horse by Katy Perry
"Coming at you like a Dark horse."
Coming at you like a dark horse is a simile. The simile is used as her telling him that he should stay with her.
Team by Lorde
"Even the Comatose they don't dance and tell"
'Even the Comatose they don't dance and tell " is personification. Comatose is a severe injury or illness.the personification is used as drunkenness where you simply revert to being drowsy.
Counting stars bye one republic
"Swing my heart across the line"
"Swing my heart across the line" is personification. personification is used as He sees his life as a fun, exciting challenge waiting to be met.