For the first time in six years, all five Backstreet Boys hit the stage this morning for Good Morning America's Summer Concert Series, welcoming back Kevin Richardson who exited in 2006.

It gets better! The 'Boys' revealed big plans for 2013, including a new album early in the year and a BSB cruise set for the fall. Yes, all five of 'em will be on board. No word yet if they will resurrect any of our suggested classic BSB outfits for future shows.

Howie, Nick, AJ, Kevin and Brian are probably pretty excited to be back together, but what exactly is happening in this photo from their GMA performance this morning? Leave your funniest captions in the comments below for this week's Caption This!

Mike Coppola

What did we do to deserve such good luck? First 98 Degrees reunites, now this?! Who's up for playing "Everybody (Backstreet's Back" on repeat ...all weekend?

Leave your best caption ideas in the comments below, then be sure to check out all our previous Caption This! photos here.