Special guest stars: Nick Cannon, Gavin DeGraw and Jon Stewart as themselves.
The Big Time Rush video for "Like Nobody's Around" spoofs the looks and movements of various famous boy bands, predominantly New Kids on the Block, The Platters, Jackson Five, Backstreet Boys, and NSYNC.
The opening credits montage includes footage from season 1. The boys have grown, none more so than James. His hair was longish in the first two seasons, which made his vanity believable, but his shorter cut in season 3 made him look less childish, less pretty and more mature, even though his character was still to be rather vain. In season 4 his hair has become rather spiky and combed straight up, giving him a harsher look that does not fit as well with his character's vanity. Elsewhere, Kendall's gone from straight blond hair to upright brown hair, and the lower portion of Logan's face and neck has filled out from age and many good meals. Carlos has changed the least in the lot.
Names of invading British boy bands: Hair 3, Colorful Pants, and Simon Cowell's Next Boy Band (S.C.N.B.B.).