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Justin Bieber's Twin Ruby Rose Helps Hype Up The Beliebers With This Pic

These two are my favorite BFFs.

The countdown is officially on.

We are 29 days away from the release of Justin Bieber's brand-new single, "What Do You Mean," and everyone is filled with anticipation -- including his new BFF, Ruby Rose.

Justin posted this pic of the "Orange Is The New Black" star, who is basically his twin, holding up a sign that counts down to Justin's big day with the hashtag #whatdoyoumean. Oh, and Ruby is doing this all during a gondola ride in Venice. So jealous of her right now, BTW.

But Ruby, who has made it no secret that she is a big Belieber, isn't the only one getting in on the excitement over Justin's new single, which is “up-tempo... fun... [and] summery," according to Bieber. Justin encouraged fans to create their own cover art for the track, and I have to say, they got pretty creative.

Some even used Justin's pics from that racy Interview magazine spread.