"Looks like 2017 is going to be one for the books! I love you like crazy @shaymooney..Let the adventures begin ❤?," Billingsley adorably announced alongside a sweet snap of the couple holding up a onesie that reads, "I'm with the band."
"Gonna have a new band member in the Mooney family... ? 2017 is gonna be the start of our best adventure yet! Mini Mooney is comin in hot. I love you @hannah.billingsley ☺?," Mooney, 24, wrote alongside the same image.