It's seeming more and more like Beyonce's second pregnancy is the world's worst-kept secret.

Russell Simmons has added fuel to the pregnancy-rumor flames, as he has posted a congratulatory message to Beyonce and Jay-Z on Twitter, along with a link to a story about their pregnancy.

"Congratulations Jay-Z & Beyonce...," he wrote.

We're thinking Russell would definitely be in-the-know when it comes to this couple. After all, Russell founded Def Jam Records, which Jay-Z was president of for most of the 2000s.

So the evidence continues to build, making us think Blue Ivy is definitely about to become a big sis.

On May 17, Beyonce had two of her dancers each push baby carriages onto the stage during her show in Zurich. Two baby carriages? That seems like a pretty clear hint to us!

We guess we'll just have to wait for an official announcement, which we assume will come at any moment. The suspense!

Source: Twitter