In a studiously silly (and sniffily) performance that began with the gross-out humor of his emerging out of the body of Demi Moore from “The Substance,” O’Brien evoked some of his delightfully experimental bits from his old late-night show.

The late-night legend performed an entire musical number, joked with Adam Sandler, and even took a jab at Karla Sofia Gascón

True to form, the host brought the silly, with bits about Jeff Bezos getting kidnapped by a package thief and a giant, superfluous musical number.