The end is nigh for How I Met Your Mother, and with the series finale mere weeks away, the cast headed to NYC to present last night’s Top 10 List on The Late Show With David Letterman.

Cast-members Josh Radnor, Cobie Smulders, Alyson Hannigan, Jason Segel and Neil Patrick Harris delivered the top 10 “Surprises in the Final Episode of How I Met Your Mother.”;

Among the highlights: Josh Radnor (who plays Ted) reveals, “Someone finally points out that I don’t sound like Bob Saget,”; while Cobie Smulders (who plays Robin), quips, “For some reason, we’re all naked.”;

Meanwhile, Hannigan posted a pic on Instagram taken from the cast table read of the final episode. Judging from the volume of used tissues sitting next to the script, the HIMYM finale is going to be a tearjerker.

The series finale of How I Met Your Mother airs Monday, Mar. 31.