Ah, the GTA V modding scene. While our coverage of it may have lessened recently, it hasn't gotten any less spectacular over the months. Enthusiastic fans continue to create all manner of mods to change up the tried and true gameplay of the single player campaign.
Modding has gained an unearned bad reputation due to the term often — and mistakenly — being used to refer to hacking, i.e. the alteration of GTA Online with third-party tampering to one's own benefit in order to gain an unfair advantage. This behavior is in collision with the game's terms of use and will warrant a ban (something you really don't want anymore).
While hacking is common on the old-gen consoles and was formerly very common on PC, modding — actual modding — is a PC-only affair, and one of the main advantages of the platform over consoles (beyond hardware, visuals, versatility, and so on).

Mods range from the minor to major, from the serious to the silly, and this particular creation falls squarely in the silly category. Sure, people have added different character models to GTA V before, but this is the first time that the merry cast of Disney's The Lion King has graced the virtual world of Los Santos.
The mod admittedly doesn't do much, but it's more about what you do with it. All this pack does is add a handful of characters from the beloved animation film to the game, allowing you to change the model of the player character and play as these animals.