Florida Georgia Line and Backstreet Boys are collaborating on an upcoming episode of "CMT Crossroads," and now the first look at the special has just been released. The clip has the two bands joining forces on the Backstreet classic “Everybody (Backstreet’s Back),” which they previously performed together on the ACM awards in April. “CMT Crossroads” with Florida Georgia Line and Backstreet Boys airs August 30th at 10pm.