Justin Bieber 'Heartbreaker': Release Date Still Unknown, New Song 2013 Will 'Come Out Suddenly' According to 'Baby' Singer's Twitter [PHOTO]

Justin Bieber continues to tease his millions of Beliebers about his new single 2013 "Heartbreaker," which is rumored to be the first part of his highly anticipated "music journals" project.

On July 3, the "Baby" singer posted a mysterious tweet: "Clue" followed by a link to his Instagram. The posted picture is an updated over for his "Heartbreaker" single along with the caption, "It's gonna happen suddenly." Bieber then followed up the bewildering tweet with another short message to his 41.4 million followers: "'suddenly.'"

The updated cover has a more cream colored backing, and the crumbling violet heart is a much more vibrant color.

Whether or not the picture is revised album art or just the doing of one of Instagram's many filters is unknown. The original artwork is features a stark white background.

The hint that the release of "Heartbreaker" will happen suddenly plays in to the hints that are already known about the single.

In an interview with MTV earlier this week, Bieber's manager Scooter Braun hinted that the roll out of "Heartbreaker" will be different. "We're gonna [sic] do it in a way that's unique, so when you see 'Heartbreaker,' know it's coming directly from him and don't think of the normal, 'Oh this is my single and this is going to be on the album.' Realize there's going to be a very unique way of how this music is going to be released unlike we've seen before from him," he said.

Bieber first teased "Heartbreaker" last month. Fans have been on high alert for news about the new single and will continue to do so until the Biebz releases the song.