Jason and Brittany Aldean are expecting their second child together—and won't need much of a refresher on the baby stage. As the country couple, both shared on their individual Instagram pages with help from their 7-month-old son, Memphis, they are now gearing up to " go again ."

"Sup everybody……. guess who is gonna be a BIG brother," the proud dad said on Instagram along with the hashtag #aldeanpartyof6, which includes his two daughters from Aldean's first marriage. Although the couple hasn't shared details about when their second baby together is due, the age gap between Memphis and his younger sibling is less than a year and a half.

It was clearly also a different experience than when the Aldeans were first trying to conceive—which ended up taking more than a year and assistance from in-vitro fertilization. "The IVF was probably harder than the actual pregnancy, for me, because it was just such a roller coaster and so difficult," Brittany told People earlier this year. "It's such high highs and such low lows, and no one really knows that you're going through it all."

At the time of the April interview, however, Brittany was direct in saying she didn't want a long wait before another baby. "The sooner the better," she said. "You're already doing the diaper thing, you're already doing everything. Why don't we just knock it out instead of getting out of that time frame, and then having to start all over again?"

That's what the Aldeans will be doing soon enough—and they aren't alone among celebrities. Here are 12 others who had back-to-back babies.

1. Alec and Hilaria Baldwin




In the span of five and a half years, the Baldwins have welcomed four children: Carmen (August 2013), Rafael (June 2015), Leonardo (September 2016) and Romeo (May 2018)—and they wouldn't have it any other way. "We were like, 'Oh, should we have another kid?'" Hilaria told People of planning for their fourth baby. "We were like, 'You know what? Let's try something different—let's try.' [With] the other ones, it's not like we were like, 'Oh my God, how did this happen?' But this is the only one we [planned]."