Get ready for a massive list. I'll even categorize them for you, like the nerd I am
Sad/slow/angry songs-
Crystalised by The XX
Green Fields by The Good, The Bad and The Queen
On Melancholy Hill by Gorillaz
No Distance Left To Run by Blur
Strange News from Another Star by Blur
Rhinestone Eyes by Gorillaz
Sell Your Soul by Hollywood Undead
Saint Veronica by Billy Talent
The Carpal Tunnel of Love by Fall Out Boy
Amarillo by Gorillaz
Shytown by Gorillaz
Stop and Stare by One Republic
Happy/upbeat songs-
London Loves by Blur
Magic America by Blur
London Calling by The Clash
Sunday Bloody Sunday by U2
Plastic Beach by Gorillaz
Clint Eastwood by Gorillaz
Stereotypes by Blur
Badhead by Blur
Around The World by Daft Punk
D.O.E.S Remix by Arrow
Voyager by Daft Punk
Sunday Sunday by Blur
On Your Own by Blur
We Are Happy Landfill by Gorillaz
Stereotypes by Blur
...There are so many more but I think that's enough for now XD