Justin Bieber SHIRTLESS Instagram PHOTOS: 'Baby' Singer Knows How to Keep Beliebers Wanting More with New Sexy Pics

Justin Bieber sure knows how to keep his legions of fans wanting more.

The "Baby" singer posted two shirtless photos to his Instagram last night. Seemingly backstage at his most recent tour stop in Denver from June 3, the photos were taken by someone else and posted by the Biebz without a caption.

Bieber clearly knows how to give his millions of young female fans what they want. The Instagram photos quickly got a positive response. Each picture has over 800,000 likes and 40,000 comments.

Take a peak at the pics below:

Justin Bieber is currently on the second North American leg of his Believe Tour. He began this portion of the two-year long tour with a June 22 stop in San Diego. Tonight, he will take the stage in Oklahoma City.

According to the Biebz's Twitter, he held 200 tickets in Oklahoma City for students affected by the recent tornadoes.

However, shirtless pics and expansive tour dates aren't all that Beliebers want. For the last month, Bieber and his camp have been teasing the release of his new single 2013 "Heartbreaker" and the release of his music journals.

It is unknown what form the music journals will take or when "Heartbreaker" will be released. However, as MStars reported yesterday, Bieber's manager Scooter Braun teased that the new music will be released in a "unique way" and will end the "witch hunt" the media has been playing on the young pop star as of late.