A simple mod to change original loading song with Solomun - Customer is King. This song is already in GTA 5, it can be listened in a nightclub, but the After Hours update is not required.
And why ? Just because I love this song and it's very cool to wait for gaming while the long loading screens... ;)

[ INSTALL ]
Use OpenIV to install the SolomunLoadingScreen.OIV file using the Package Installer.
- In OpenIV open Tools menu.
- Click on "Package Installer"
- Choose SolomunLoadingScreen.oiv file.
- Use "mods" folder. (Recommended !)

[ MANUAL INSTALLATION ]
If you need, I provide a manual installation method, read the ReadMe file.