Dominick Grillo contributor.

 Joel Woods

We Saw (And Reviewed!) Bonnaroo 2015's Five Least-Attended Acts

Last year we sent Billboard’s Dominick Grillo around the fest to check out the five acts that had received the least number of “check-ins” on the official Bonnaroo app, and he actually saw a then little-known James Bay. Would ‘Roo 2015 help launch another unknown act into the mainstream?