"Wow" (stylized as "WOW") is a song by Swedish singer Zara Larsson. It was released as a promotional single on 26 April 2019 through TEN Music Group and Epic Records. It was co-written and produced by Marshmello. The song was featured in the 2020 Netflix movie Work It and was announced by Larsson to be released as a single on 26 August 2020. It serves as the third single from Larsson's third studio album Poster Girl. A remix of the song featuring Sabrina Carpenter was released on 25 September 2020.