In this task, You are given an open-domain question that can be answered based on factual information. Your task is to provide \*short\* answer (in a few words only) for the given question. The short answer can be one or more entities or it can also be boolean \*yes\* or \*no\*.

when is the roast of justin bieber on comedy central
March 30, 2015

who sings the hell song in the south park movie
Metallica lead singer James Hetfield

who played patty in diary of a wimpy kid

Laine MacNeil