"Five Things You Need to Know Today" is a Patch column that provides readers with essential, daily information at a glance. Check back later for more, and let us know what you think of the five things in the comments section.

1. The Boston Ward 20 Democratic Caucus will take place on Saturday, at 9 a.m., at the West Roxbury Pub. The Caucus is to elect delegates to the Massachusetts Democratic Convention to be held on June 2,2012 at the Mass Mutual Center in Springfield.
   
2. West Roxbury District Councilor Matt O'Malley is holding office hours at Starbucks on Friday morning. 8-9 a.m.
   
3. The Boston Youth Fund Summer Employment Program and hotline are open to register Boston youths for summer jobs. To learn if you're eligible and to apply click here.
4. On Saturday, Minerva's Owl (751 South St., Roslindale) invites the public to a free in-store concert. 2 to 4 p.m. Hear performers Lindsay Straw (guitarist/singer) and Armand Aromin (violinist) playing Celtic and contemporary love songs and be inspired while you shop.
5. Want to know what the kids are listening to today? The Boston Public Health Commission talked to Boston teens, who provided a Top 10 list for the healthiest and unhealthiest relationship songs of 2011.