Girls of the '90's, brace yourselves!  Backstreet Boy Nick Carter and New Kid on the Block Jordan Knight have joined forces for a new duo the pair are calling Nick & Knight!

(Insert screaming here!)

The two are releasing an album and going on tour in September!

You can pre-order the album on nickandknight.com and get a free download of the pair's song, "Just The Two of Us."

The 39-city tour kicks off on Sept. 15 in Nashville, Tenn. and includes stops in New York and two shows in L.A.

They announced their project on Good Morning America where they will perform on September 2, the day the album goes on sale.