Pop Star Warzone Blueprint is a Legendary AK-74u build you may have encountered as floor loot. If you want the Pop Star skin for your own collection, it's available in the Anime Assassins bundle in the shop.
Vengeance has come.
Season One of #BlackOpsColdWar and #Warzone is now available on all platforms.
— Call of Duty (@CallofDuty) December 16, 2020
Pop Star Warzone Blueprint: How to Get
The Anime Assassins bundle costs 1,600 COD points and comes with a matched set of cosmetics. In addition to the Pop Star AK-74u, the bundle includes the Almost Famous QBZ-83, Assassins Blade knife, Lover's Dagger charm and the Low Profile calling card.
The weapons here share a similar aesthetic. They're both brown with some camo accents, but have bright magenta sections with an anime girl pin-up style graphic. The same anime pin-up girl appears on both the Pop Star and Almost Famous skin.
The bundle isn't a bad way to get the tier list topping AK-74u, but the QBZ isn't a particularly special Assault Rifle. Getting a head start with the Pop Star AK-74u might make this bundle worth it, especially if you're into the aesthetic of the skins.
If you're into the somewhat gaudy anime pin-up aesthetic, this is the bundle for you. It would go well with the other anime inspired cosmetics in the game.