OpenGameArt.org
Don't danse so fast
Credit line
"Don't danse so fast" by Alexandr Zhelanov licensed CC-BY 3.0: https://opengameart.org/content/dont-danse-so-fast Author's attribution notice: Alexandr Zhelanov https://soundcloud.com/alexandr-zhelanov
Where to put it: Game credits or video description. If the entry has a "Copyright/Attribution Notice", follow that.