There are no required practices. There are no auditions. For the Camo Choir, you just have to be willing to step up and sing, and every man in the community is invited.

The Camo Choir is a unique spontaneous men's choir that started a few years ago at Christ Fellowship church in McKinney. Now it's a Mother's Day tradition. Last year, more than 100 men stepped up to croon en masse. And the men of the community are encouraged to...well, show up.

"That's all you have to do. Show up and get up on the stage when we call for the Camo Choir. The words are on the screen and you can easily follow along," said an organizer with the church. "We promise, your mother will love it."

Camo Choir is at 9:30 a.m. and 11:15 a.m. this Sunday. You can show up for one or both services. You can wear whatever you want — even camo!