The U2 song "Sweetest Thing" was written for Hewson as a gift because Bono forgot her birthday whilst recording with the band during "The Joshua Tree" sessions. Originally released as a B-side in 1987, it was later re-recorded and released as a single from the compilation album "The Best of 1980–1990" in 1998. Hewson agreed to appear in the single's music video as long as all proceeds from it went to Chernobyl Children's Project.