‘Opening Night at the Hollywood Bowl 2013’

Principal Guest Conductor Thomas Wilkins speaks to the crowd as he introduces the Hollywood Bowl Orchestra.  (Bret Hartman / For The Times)

Darren Criss performs with Powerhouse, a musical group from John Burroughs High School, during “Opening Night at the Bowl.”  (Bret Hartman / For The Times)

Arsenio Hall introduces Patti Austin before her performance.  (Bret Hartman / For The Times)

Patti Austin performs during “Opening Night at the Bowl.”  (Bret Hartman / For The Times)

Her back up singers look on as Patti Austin performs.  (Bret Hartman / For The Times)

Peter Fonda introduces Steven Tyler and Joe Perry of Aerosmith before their performance.  (Bret Hartman / For The Times)

Steven Tyler, left, and Joe Perry of Aerosmith perform during “Opening Night at the Bowl.”  (Bret Hartman / For The Times)

Steven Tyler, left, and Joe Perry of Aerosmith.  (Bret Hartman / For The Times)

John Legend, left, greets Stevie Wonder on stage before performing.  (Bret Hartman / For The Times)

John Legend performs during “Opening Night at the Bowl.”  (Bret Hartman / For The Times)