Last month, when Duff debuted "mermaid" blue hair, many immediately noticed the similarities to Kylie Jenner's color when she donned the teal tips on her raven tresses, but now the E! star has upped her colorful style with one electrifying new 'do.
Kylie posted a new selfie on Snapchat and surprised fans by debuting an even brighter hairstyle—long, aqua blue locks!