How do I purchase backstage VIP TICKETS for Killswitch engage and Anthrax also Parkway Drive at the Sherman Theatre Stroudsburg PA??

Contact box office

You can call the the box office or check the website

If you just show up at the theater a lot of times people will be selling tickets before the show I don't know about VIP tickets though

If available, they would be on their website.

They're already sold out