Keke Palmer gave a shoutout to Sammy Davis Jr. as she rocked a classic tuxedo look on the red carpet ... a sharp white blazer and a cane in an ode to the Rat Pack icon. “It’s a little ode ...

Carpenter started out in a sparkly tuxedo dress and gave an old-school theatrical entrance, pretending to accidentally drop a cane before singing a snippet of “Espresso” over a jazz piano.