The beyhive is buzzing! Some of Beyoncé's biggest fans are convinced that she's pregnant with her fourth child, only one year after welcoming precious twins into the world with her hubby JAY-Z. After kicking off the first few shows of her On The Run II tour, many concert-goers started commenting about her wardrobe choices since they mostly included items which covered her midriff. Of course, it didn't take long for Bey's fans to go wild with theories that she's got a bun in the oven.

"If you notice on Beyonce's dress a heart is located on the mid section. I'm convinced that there is a little angel growing inside," one fan speculated via Twitter. "Heart represents Heart beat." Several others chimed in to question if she's trying to hide a growing baby bump under her ensembles. "She's wearing blazers, capes, and extra accessories around her abdomen," another added. "I'm suspicious. Beyoncé might be pregnant again."

Beyoncé gave her youngest kids a special shout-out during her sold-out concert in Manchester on June 13. "Happy Birthday to Sir and Rumi. We love you!" she yelled over the microphone, and as expected, the crowd went wild. The songstress has given fans a few glimpses at her gorgeous and healthy twins.

Even though Bey and JAY have been very open about the tough times in their marriage, the power couple appears to be happier than ever in new footage played at their concerts. Their daughter Blue Ivy also makes a special appearance in one personal video, where she's seen alongside the twins as Beyoncé and JAY renew their wedding vows. Fans believe it wouldn't be totally out of the question for Beyoncé to have another baby, considering the number four's symbolic value to the couple. As Elle pointed out, "both have the number tattooed on their ring fingers, '4' was the title for Queen B’s fourth studio album, while JAY-Z's recent album was titled 4:44."

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