At the 30th annual Easter Bonnet Competition, Rock and Roll Hall of Famer Stevie Nicks made a surprise appearance to join the kids' band from School of Rock - The Musical. The audience screamed as Nicks - with her distinctive, legendary voice - led the band in Fleetwood Mac's classic hit "Rhiannon," which Nicks wrote.
SOURCE: YouTube at 02:40PM on April 27, 2016