Backstreet Boys' Kevin Richardson Expecting Second Child With Wife Kristin

Boy-bander and his spouse also have a 5-year-old son, Mason

A mini-Backstreet Boy (or girl!) is on the way.

Kevin Richardson and his wife, Kristin, are expecting their second child later this year, the boy-bander announced Sunday via Twitter.

The 41-year-old singer tweeted a photo of the mom-to-be and her growing baby bump posing with the Easter Bunny. "So excited to share….," he wrote. "The Easter bunny brought a very special egg this year!"

The couple have been married since 2000 and are also parents to a 5-year-old son named Mason.

Backstreet's Back, all right!