MANILA, Philippines - The Philippine Madrigal Singers or Madz, which tour the Americas for six months, will perform on two Sundays at Boni High Street, Bonifacio Global City. The second of the free shows is slated for March 27. Madz choirmaster Mark Anthony Carpio said that the group will be doing away with their formal costumes and classical performances for these open shows. Basically, they will be giving a “campout style” ambience wherein the audience could simply sit on the grass, bring in some snacks while listening and singing with the group. In some parts of the show, the choir soloists will also ask members of the audience to come up with them on stage and sing.