NEW YORK (AP) — When Shawn Mendes went into the vocal booth to sing "Mercy," the gravelly, deep, emotional rock song from his latest album, he discovered a new side of himself. "When I sing it, when I perform it, like everything to do with the song is completely, just like my heart races, my blood pressures rises, I get all hot," said Mendes, who was encouraged to scream some of the lyrics to bring the song to life. Mendes, Gosling, singer-songwriter Teddy Geiger and others traveled to upstate New York to record — living together, running in the morning and taking walks at night. There are other songs, too, that strike with similar passion: "Don't Be a Fool" is a soulful rock classic; "Lights On" is a sweet rock song; and on the album opener, "Ruin," Mendes sings with a commanding tone: "And I'm not trying to ruin your happiness/But darling, don't you know that I'm the only one for ya." "[...] the thing is when I first started performing live I mean, I could do it, I wasn't that impressive, but I worked so hard at the two most important things in my career ...