Ciara and Russell Wilson have another baby on the way. The “One, Two Step” singer is pregnant with her fifth child, her fourth with her husband, Russell Wilson. The couple announced the happy news on Instagram Sunday. They posted a video of her hanging up white t-shirts on a clothesline representing each member of their family, ending with her hanging up a onesie representing their incoming bundle of joy. A visibly pregnant Ciara smiles, showing off her baby bump in a tank top with her hair up in rollers. In another video, both she and the former NFL athlete playfully hold up five fingers. “I guess,” Ciara cracked. The two captioned the…