If you’re not hoarse by the end of the weekend, you should be.

Tonight, Friday and Saturday mark the final three days for 500 Songs for Kids, a benefit for the Songs for Kids Foundation.

This is the second year for the event, which raises money for camps and therapeutic programs helping kids. The foundation works to introduce music into children’s lives who might not otherwise benefit from it.

Last year the group recruited 500 bands to perform Rolling Stone’s top 500 songs of all time. Georgia bands such as The Whigs chipped in, along with nationally known artists such as Edwin McCain. This year, the theme is the 500 best sing-along songs, compiled by the organization after going through literally thousands of songs.

Finalists on the list include "American Pie" by Don McLean and "Billie Jean" by Michael Jackson. The list spanned decades and genres, leading up to one great Beatles’ song at the end.

But the artist lineup isn’t announced until the night of the show — that’s what keeps crowds guessing and coming back night after night, all for a good cause.

Tonight, songs No. 150-101 will benefit Kate’s Club, Camp Wee-Kan-Eat-It and Craniofacial Camp. Friday, songs 100-51 benefit Camp Oasis and Children’s Healthcare of Atlanta. And on Saturday, sings 50-1 benefit Camp to be Independent and Camp Twin Lakes.

Music starts at 6:45 p.m. each night, and there’s a $10 cover. Smith's Olde Bar is at 1578 Piedmont Ave. in Atlanta. Call 404-875-1522 for more information.