Justin Timberlake and Shawn Mendes recently came together to perform on hit song 'What Goes Around...Comes Around'. Timberlake even shared a video of their duet on Instagram and captioned it as, "Last night @iheartfestival". A night before the performance, the 'Can't Stop The Feeling!' singer teased the collaborations with Mendes with another Instagram post. "About to bring this guy on stage...," he wrote. Mendes also took to Instagram and posted a still from their performance. She wrote, "Thank you @justintimberlake for being such an incredible guy". According to a report by E-News, before Mendes walked on stage, Timberlake praised the 'mercy' singer. Later, Mendes returned the favour by saying Timberlake is his all-time favourite. Timberlake was last seen walking on the red carpet with his wife Jessica Biel at the 2018 Emmys where she was nominated for the Outstanding Lead Actress in a limited series or movie category. Meanwhile, Mendes was recently nominated for a 2018 People's Choice Awards.