After backing up your phone, you'll need to head to Apple's Beta software program and click on "Get Started" to enrol your device.
Then go to beta.apple.com/profile on your iOS device and tap "Download profile", and update your iOS device to install any beta software.
Once the redhead emojis are available to everyone, you can then unenroll from the beta program.
In addition to the redhead emojis, bald and curly haired folks will also now be represented.
Grey-haired people, superheroes, party hat smiley, mango, kangaroo, lettuce, lobster, peacock and the Infinity symbol will also be available among other new emojis.
*Apple support guide here.