Shawn Mendes signed a deal with Columbia Records.
 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"
 He later announced his second world tour as a headliner, the Shawn Mendes World Tour, which started in March 2016 and sold out 38 shows in North America and Europe within minutes

