Malibu Barbie and Brooklyn Barbie are ready to party under the sea after transforming into mermaids in TheWrap’s exclusive sneak peek at the upcoming Netflix movie musical adventure “Barbie Mermaid Power,” from Mattel.The film follows Barbie “Brooklyn” Roberts (who made her debut in the Barbie universe last fall), Barbie “Malibu” Roberts, and her sisters Skipper, Stacie, and Chelsea “on an underwater adventure as they transform into mermaids to help save the world of Pacifica,” per a logline from Mattel. “In ‘Barbie Mermaid Power,’ Barbie and Barbie are summoned by Isla (from Dolphin Magic) to compete to be the underwater Power Keeper in a series of challenges designed to find their inner powers.