MBA students from Brock’s Goodman School of Business sang Christmas carols in the Mackenzie Chown hallway Monday. Fifteen students have formed a choir and will also be carolling in the lobby of the St. Catharines hospital at 2 p.m. Wednesday, Dec. 21. The Goodman School of Business has partnered with Choir Nation, a company launched earlier this year that helps organizations form company choirs and sing music as team-building exercises.