Caroline Esmeralda van der Leeuw (born 26 April 1981), known by her stage name of Caro Emerald, is a Dutch pop and jazz singer. She debuted on 6 July 2009 with her single "Back It Up". Her 2009 single "A Night Like This" reached the number 1 position in the Netherlands.

Her debut album Deleted Scenes from the Cutting Room Floor set a new all-time Dutch chart record on 20 August 2010, spending its 30th week at number one on the country's albums chart, beating the previous record set by Michael Jackson's Thriller by one week. The album became the biggest selling album of 2010 in the Netherlands and has sold over 300,000 copies so far. In total more than a million copies have been sold. On 3 October 2010, Van der Leeuw was awarded the Dutch music prize "Edison Award" for Best Female Artist.

In April 2013, her second studio album The Shocking Miss Emerald went to No. 1 in the UK album chart, becoming her first UK No. 1 album. The album received generally positive reviews from music critics. Simon Price of The Independent gave the album a positive review stating, "The danger facing this Dutch diva as she follows up the multi-platinum Deleted Scenes… in a marketplace packed with similarly retro-styled chanteuses is that she'll sound like a redundant cabaret turn. What saves TSME is its often-inspired mix of vintage jazz and modern hip hop. Her secret weapon, in this respect, is producer David Schreurs, who rescues Emerald’s second album from turning into one long perfume ad, albeit a charming one." Stephen Unwin of the Daily Express said, "Caro is certainly the sort of performer who you could imagine giving a knowing wink in between a cheeky lyric or two and the voice has a twirl that makes you smile. This new one of hers is light, fun and inspired by Paris, ergo it is stylish and jazz-age infused. The stakes are high as Caro's breakthrough album sold like a crazy thing but those stakes needn't have worried. Sassy, smouldering and quite possibly the soundtrack to your summer."