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 did justin bieber perform at madison square garden
August 31, 2010

who led an expedition to explore the louisiana territory
Lewis and Clark

who wrote the lyrics to you've got a friend

Carole King