 In late 2015, Mendes and Camila Cabello, who was at the time a member of the group Fifth Harmony, released their collaborative single "I Know What You Did Last Summer".The song was included on Mendes' "Handwritten Revisited" reissue.Mendes was listed among "Time"s "25 Most Influential Teens of 2014", debuting in the list after being the youngest-ever artist to debut in the top 25 of "Billboard" Hot 100.