17-year-old Allison Closs from Pennsylvania took a cardboard cut-out of Danny DeVito to her high school prom. It even had a tie and a corsage, and she had a little trolley to pull the faux-DeVito around on.
The media attention that Closs got meant word of it eventually got back to the set of “It’s Always Sunny In Philadelphia”, DeVito’s television show.
So… DeVito got a life-size cut-out of Closs at the prom, and brought it on to the set of the gang’s notorious Irish pub.