Late Night with Jimmy Fallon

LL Cool J, Alyson Hannigan, Benedict Cumberbatch (2013x77)

Air date: May 10, 2013

From "NCIS: Los Angeles", actor/musician LL Cool J; from "How I Met Your Mother", actress Alyson Hannigan; from "Star Trek. Into Darkness", actor Benedict Cumberbatch; LL Cool J performs.