5 Things You Need to Know Today: Q Train Trouble, Playground Cleanup, Kids Benefit Concert, First Saturday, More

1. You need to get involved in the community. Head to Underhill Playground at either 9 a.m. (or the early crowd) or 10:30 a.m. (for the rest of us) to .

2. You need to get the kids out of the house. There are two competing kids benefit concerts today: , benefiting the scholarship fund at Brooklyn Freespace, and  benefiting the non-profit Maple Street School. Or see our .

3. You need music. Head to Brooklyn Launchpad to hear . 6 p.m.–11 p.m. Free.

4. You need art and music. Tonight is . With a focus on , highlights include a performance by Martha Redbone; a family-friendly dance performance by the Thunderbird American Indian Dancers; and an interactive dance program hosted by the Redhawk Arts Council. , 200 Eastern Pkwy, Saturday, 5 p.m. - 11 p.m. Free.

5. You need to know if your train is running. If it's the Q, it's not. All weekend long, and for the next two weekends, t. You can catch the N at Atlantic/Pacific for Q stops in Manhattan. There's a shuttle bus that stops at Atlantic, 7th Avenue and Prospect Park.