CANCELED. Every year, 14 senior Yale students are selected to be in the Whiffenpoofs, the world's oldest and best-known collegiate a cappella group. Since it's founding in 1909, the group has performed at Carnegie Hall, the White House and the Rose Bowl; for sitting Presidents including Obama, Bush, Clinton, and Reagan; and on television programs such as "The Today Show," "Glee" and "The Sing Off." Please join the "Whiffs" for their first performance in San Antonio in over a decade.