Ilsey Anna Juber (born April 17, 1986) is an American singer and songwriter from California. Juber co-wrote the 2015 single "Powerful" by Major Lazer featuring Ellie Goulding. Juber was also a co-writer on Mark Ronson's "Nothing Breaks Like a Heart" feat. Miley Cyrus, Mark Ronson’s Late Night Feelings album with vocals featured on the track "Spinnin", along with the entire 2018 Lykke Li album, "so sad so sexy". Juber was a co-writer on Panic! at the Disco's "High Hopes", which reached #1 on the US Hot AC, Alternative, and Top 40 radio charts. In 2018, Juber won two BMI awards for her work co-writing "Mercy" by Shawn Mendes and "In the Name of Love" by Martin Garrix and Bebe Rexha. In 2020, Juber wrote "This Is Us" for Jimmie Allen and Noah Cyrus who performed their duet at the 2020 CMT Music Awards. Also in 2020, Juber worked on "Midnight Sky" as well as two other songs from Miley Cyrus' album, "Plastic Hearts". On October 3rd, "Midnight Sky" hit #11 on Billboard's Adult Top 40. Miley Cyrus performed her song live at the 2020 MTV Video Music Awards. Other notable writing credits include "All Night" by Beyoncé, "She Loves Control" by Camila Cabello, "Ocean" by Martin Garrix featuring Khalid, Rita Ora "Let You Love Me", Robin Schulz's "Headlights", and "Disarm You" for Kaskade (both of which she also provided vocal features). She is presently signed to Sony/ATV Music Publishing.