Broad City’s Ilana Glazer and Abbi Jacobson went on Late Show and showed Letterman and his audience some of their best micro-impressions, which are just like regular impressions except way shorter, accomplishing everything you’d want out of an impression but without wearing out whoever’s listening.

Watch Glazer and Jacobson revolutionize comedy with their super quick Nicki Minaj and Rose from Titanic impressions, respectively, below: