Sabrina Carpenter appeared on “Late Night with Seth Meyers” upon the conclusion of her “Short n’ Sweet” tour. Lloyd Bishop/NBC via Getty Images Sabrina Carpenter is firmly on the showgirl bandwagon.

Fans of offbeat late-night TV from the 1990s, get ready to relive some seriously campy fun. The cult-favorite series Up All Night — the wild movie showcase that became a slumber-party staple for a ...