Justin Bieber shows off toned abs and tattoos during gym workout

Justin Bieber works hard to maintain his toned body.

On Wednesday, Bieber, 25, was spotted working out at the gym without his wife, Hailey Baldwin. The "Love Yourself" singer went shirtless for his exercise routine, showing off his lean but muscled form and numerous tattoos in photos obtained by Daily Mail.

Meanwhile, Bieber's wife, Hailey Baldwin, had also been spotted out and about on the same day.

The model rocked a baby blue trenchcoat, dark sunglasses and silver earrings as she headed to a studio for a photo shoot.