It's a bit late to be tagged in anything really since my list is kinda solid, also please stop commenting "this was from 2013". Most everything from 2013 is eligible, deal with it!
#22 - Heroes - Alesso ft. Tove Lo
Fun Fact: IM PICTURE BLACKLISTED, CONSIDER MY BLOG PIC THE PIC FOR THIS # SONG
Hint for #21: The artist had a very similarly titled song previously.