Shawn Mendes' 2015 debut album Handwritten features hit singles 'Life Of The Party' and 'Something Big', in addition to new songs crafted by Mendes in writing sessions on his tour bus over the course of the past year, including production by Martin Terefe (Jason Mraz's 'I'm Yours' and Train's 'Hey Soul Sister'), as well as songs with 'Life Of The Party' co-writers Ido Zmishlany and Scott Harris.