LOS ANGELES — The Golden Globes are fast approaching, and Nikki Glaser is struggling to find a Julia Roberts joke. “She’s been the toughest nut to crack,” Glaser, who’s hosting Sunday’s Globes, said Tuesday with a determined laugh. “But I’m going to crack it.” The comedian got the hosting gig last year after showing her skill at ruthlessly roasting celebrities. She got raves for her monologue. She brought out the knives, but they weren’t overly sharp. She was promptly asked back. Sunday’s monologue will be a shape-shifting monster until the moment the CBS telecast starts and she takes the stage […]... Keep on reading: Golden Globes host Nikki Glaser struggles with Julia Roberts, Venezuela in monologue