Tom Johnston. Tom Johnston was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Vocals, Guitar'.Michael McDonald. Michael McDonald was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Keyboard, Vocals'.Pat Simmons. Pat Simmons was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Guitar, Vocals'.John McFee. John McFee was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Guitar'.Keegan Martin. Keegan Martin was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Director'Don Maggi. Don Maggi was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Producer'Joel Hoffner. Joel Hoffner was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Executive Producer'Karim Karmi. Karim Karmi was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Executive Producer'Pat McDonald. Pat McDonald was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Executive Producer'Adam Cohen. Adam Cohen was >> in The Doobie Brothers: 50th Anniversary at Radio City Music Hall as 'Production Manager'