The troubled singer is set to release a new single, What Do You Mean?, next month (Aug15), which will be followed by his first album since a slew of headline-grabbing legal troubles threatened to derail his pop career.

However, Bieber admits the project, which is his first album since 2012's Believe, is taking a toll on his mental health.

He tells Ryan Seacrest on his KIIS-FM U.S. radio show, "I've been working a lot in the studio, just trying to have a consistent sound, a cohesive sound. I get in my head a lot and I get kind of depressed because I want it to work so badly. I want people to love it. I want to inspire people. Sometimes I wonder, 'Is this good enough? Is this the direction I want to go?' I had kind of a rough week last week. I get in my head and I don't want to get out of bed sometimes."

Bieber's career has been hit by a series of arrests and nightclub scuffles, plus convictions for vandalism, careless driving and resisting arrest.