Say goodbye, to Sleep Train Amphitheatre "Â not the venue, the name. Effective immediately, Sleep Train Amphitheatre "Â San Diego County's largest outdoor concert venue " will be known as Mattress Firm Amphitheatre. The venue is owned and operated by Live Nation, the world's largest promoter of concerts...
SOURCE: The San Diego Union-Tribune at 02:00PM on February 16, 2017