Justin Bieber has defended Kylie Jenner over her cornrow hairstyle.

The 'Keeping Up with the Kardashians' star was recently slammed by actress Amandla Stenberg'' for ''appropriating black features and culture'' with her braided locks, but her 'Boyfriend' hitmaker pal has now hit back over ''ridiculous'' allegations of racism.

He commented on Kylie's picture: ''Guys leave her alone, were all trying to figure it out and she happens to be under a microscope! I'm the first to know this.

''But saying she's being racist because she wants her hair in braids is ridiculous. lets focus on the bigger picture and instead of fighting over something stupid lets do something about equality, but it doesn't start here blasting a 17 year old kid for wearing braids smh [shaking my head] (sic)''

'Hunger Games' star Amandla, 16, had slammed Kylie, 17, for not using her ''position of power'' to call attention to ''police brutality or racism''.

She commented: ''when u appropriate black features and culture but fail to use ur position of power to help black Americans by directing attention towards ur wigs instead of police brutality or racism #whitegirlsdoitbetter (sic)''.

Kylie later responded to the comment made by the actress - who took her longtime pal and once rumoured boyfriend Jaden Smith to prom in May.

Kylie replied: ''@amandlastenberg Mad if I don't, Mad if I do.... Go hang w Jaden or something (sic).''