The pair also shared some egg nog together: "I do f—k with the nog," the six-time Grammy nominee singer-songwriters said.

Sabrina Carpenter stopped by the "The Late Show" on Thursday — and when host Stephen Colbert presented her with deskside espresso martinis, she quickly upped the ante. "Should we do a chugging contest?" she asked. Colbert accepted. He drained his drink seconds later, besting and "terrifying" his much younger guest.