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Speaking to The Hits, Bernie said he'd been mulling over the perfect way to unveil the news online for quite a while.
"I was thinking about how to do it for ages," he said, "I didn't want to do the same old thing."
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The post has received numerous likes, comments and congratulations for Bernie and Vika, who are expecting their "goods to be delivered" in September.
One person wrote: "It took me a while, but I figured it out haha! Congratulations guys!"
Another posted: "Haha, oh my goodness, that took embarrassingly long to figure out! Very well done! Congratulations!!!"
And one friend offered some sage advice for the couple, writing: "A huge investment, but you can pay the bill in rates over approximately the next 18 years."
• This article first appeared on The Hits and is published here with permission.