To borrow a phrase from Backstreet Boys' lyrics to 'Everbody,' Backstreet's back, alright! Original member Kevin Richardson, who left the band in 2006 to pursue other interests, only to make sporadic return appearances, is back in the band permanently!

According to multiple sources, including Oh No They Didn't, BSB announced the great news during their concert at London's O2 Arena on Sunday, April 29. With Richardson back in the fold on a full-time basis, plans for another NKOTBSB tour with all 10 members are being discussed!

Woo-hoo!

In other BSB news, the family is expanding, as member A.J. McLean and wife Rochelle are expecting. McLean announced his good news at the show, as well. According to a press release, he said, "Words cannot express how I feel, this is something I have always dreamed about my whole life. I've found my dream girl and this is the greatest gift of all. I am the happiest and healthiest I have ever been. We are anxious, nervous, excited, happy, all emotions one can feel. Life is goooood! We are due sometime in November!"

Congrats to BSB on welcoming prodigal son Richardson back and to McLean on his upcoming bundle o' joy!

Watch A.J McLean + Wife's Message to Fans