Hayley Kiyoko Alcroft (born April 3, 1991) is an American singer-songwriter, actress, and author. As a child model and actress, she appeared in a variety of films, including Lemonade Mouth (2011), Jem and the Holograms (2015), Insidious: Chapter 3 (2015), and XOXO (2016).

Alongside her film roles, she also had recurring roles in the TV series  Wizards of Waverly Place (2010) and The Fosters (2014), as well as lead roles on CSI: Cyber (2015–2016) and Five Points (2018–2019). Kiyoko issued three solo extended plays: A Belle to Remember (2013), This Side of Paradise(2015), which includes the single "Girls Like Girls", and Citrine (2016). Following the singles "Sleepover", "Feelings", and "Curious", she released her debut studio album, Expectations (2018), which reached the top 20 of the charts in the United States, Canada, and Australia.