Miranda is set to host SNL this Saturday

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Lin-Manuel Miranda paid his respects to one of the sketch comedy greats ahead of his upcoming Saturday Night Live hosting duties.

The Hamilton star honored the late SNL legend Phil Hartman via Twitter on Thursday. “Phil Hartman’s shoes. Impossible to fill,” the actor wrote, captioning a photo of what appears to be a literal pair of Hartman’s shoes (two brown dress shoes with “Phil” inked on the soles”).

Hartman began his career with the famous L.A.-based improv group The Groundlings, alongside future Pee-wee Herman actor Paul Reubens. Hartman and Reubens worked together on Pee-wee’s Playhouse and later Pee-wee’s Big Adventure. He was also known for his voiceover work, especially on The Simpsons, where he voiced several reoccurring characters.

As an SNL cast member, Hartman is perennially ranked as one of the best by fans. He was on the show for eight seasons beginning in 1986, and became known for his impressions (he spoofed Bill Clinton throughout his presidency) and for his numerous original characters. Dubbed “The Glue” by fellow cast members for his ability to hold the show together, Hartman won an Emmy for his SNL work in 1989. He departed the show in 1993 but returned to host twice.

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In 1998, Phil Hartman was murdered by his wife of 10 years Brynn, who then took her own life. They left behind two children, Sean and Birgen. A recovering alcoholic and cocaine user, Brynn had recently resumed drinking after a decade of near-sobriety at the time of the murder-suicide.

Miranda, meanwhile, won three Tony-awards this year for his smash hit musical Hamilton. He hosts the second episode of the 42nd season of SNL on Oct. 8 with musical guest Twenty One Pilots.