Stephen Colbert's penultimate episode of 'The Late Show,' aired on May 20, was a star-studded affair featuring surprise appearances from over 10 major celebrities. The segment was centered around Colbert's own 'Colbert Questionert,' where stars like Billy Crystal, Robert De Niro, and Mark Hamill asked him lighthearted questions. The guests included notable figures such as Martha Stewart, Jim Gaffigan, and Aubrey Plaza, each contributing quick jokes and reflections. Notably, Plaza humorously mentioned her pregnancy during her appearance, while Brolin presented Colbert with a ship in a bottle, wishing him well in life's turbulent waters. Colbert shared personal insights, declaring pastrami on rye as his favorite sandwich and contemplating life after death. The episode also featured a performance by Bruce Springsteen, who humorously noted Colbert's unique position as a late-night host during challenging political times. The series finale is set for May 21, promising even more star power.