Dancing with stranger. 
 Snap 
 Bing Bing boo 
 Waste  
 We are infinite  
 Vacation 
 Shameless 
 Infected 
 smack that 
 My heart into your arms tonight  
 One kiss 
 Levitating  
 Hips don't lie 
 Toca toca 
 Heart attack  
 Memories 
 Don't let me down 
 Arcade 
 Industry baby 
 on&on 
 Stereo heart 
 All round the world (la la laaa) 
 Love me like you do 
 Waving' flag 
 Bad habits 
 Waka waka 
 Rockabye 
 Run free 
 Montero call me by your name 
 Solo 
 Girls like you  
 Invisible  
 Bones  
 Him & I 
 Despacito 
 Wanna be 
 I ain't worried.             --- my favourite song 
 Unholy  
 In da club  
 Somebody I used to know  
 Radioactive  
  
  
  
 Many more songs ...

Suggest some songs for people who travel alone.....