Justin Bieber sang about wife Hailey in several songs on his new album, 'Swag' - like 'Walking Away,' where he vowed not to end their marriage.

When director James Gunn, steward of the high-flying new Superman reboot, was recently asked to list his favourite comic book movies, he singled out Richard Donner’s beautifully brash 1978 take on the Man of Steel – the film generally credited with firing the starter pistol for the modern cinematic superhero era.

Like much of SWAG, “Walking Away” is inspired by old-school R&B. But rather than celebrate his love with Hailey, Bieber directly addresses their issues, even questioning why “you're throwing stones at my back” and asking to reflect on their own behavior. “Girl, we better stop before we say some sh*t,” he sings. “We've been testing our patience.”