Ooh, fun. Here are some of my favorite optimistic/upbeat rock and metal tracks:
The Beatles - "Penny Lane"
Cream - "I Feel Free"
David Bowie - "TVC15"
Fleetwood Mac - "You Make Loving Fun"
Green Day - "Waiting"
Led Zeppelin - "The Song Remains the Same"
The Rolling Stones - "Brown Sugar"
Stone Temple Pilots - "Big Bang Baby"
tbh "Two Minutes to Midnight" is very optimistic about us all getting nuked soon
i guess there's a difference between the music being heroic vs the lyrics being miserable