QUESTION 371 : Cupid's Arrow.

Connect the four images and give me the name of a song.

If you're feeling generous, explain.
Actually, explain.
The connect's rather obvious.

Question 370: Money, it's a gas Grab that cash with both hands And make a stash

First used by Roosevelt in his 1932 address on the radio, The more current usage refers to the billions people living on less than __ per day, as first defined in 1998 by _______ and _____. It was subsequently expanded upon by both in their books.

Identify the term