Christina Perri is an American singer-songwriter and musician from Philadelphia. The singer's first album, lovestrong., grappled with the aftermath of a breakup, signaling Perri as an honest, genuine artist ready to share her emotional journey with her fans. That disc, released in 2011, was bolstered by the success of Perri's single "Jar of Hearts" and led the musician into nine tours over 27 months. Her final show supporting lovestrong. took place on October 9, 2012, at Los Angeles's iconic Hollywood Bowl with Jason Mraz. Two weeks later, Perri penned the first song for head or heart, her 2014 sophomore album.