Watch Paul McCartney (on trumpet!) and friends perform "When the Saints Go Marching In"

From yesterday's 'Round Midnight Preserves streaming event: Paul McCartney performs "When the Saints Go Marching In" with Irma Thomas, Elvis Costello, Jim James, Dave Matthews and members of the Preservation Hall Jazz Band.

The event was an online auction to benefit the Preservation Hall Foundation, which offers a variety of musical education programs to children in New Orleans. More info here.