Havdalah is the ceremony that closes Shabbat, and Eliyahu is the traditional song Jewish people sing as it closes before wishing each other a Shavua Tov - or a good week. We sing: 

Elijah the prophet, Elijah of Tishbi, Elijah of Gilead, may he soon come to us along with the Messiah, son of David. 

Sung by Isaac Zones
Produced by Shaboom! 

Service Section: Havdalah, Holidays 
Source: Shaboom!