April 10, 2018 3:01 am ‘Tonight': Co-Host Cardi B Tells Jokes In Jimmy Fallon's Monologue Cardi B steps in as Jimmy Fallon’s co-host and kicks off the job by adding her twist to his monologue from Monday, April 9. US & World Videos 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 2:05 Whoopi Goldberg reveals who will inherit her fortune