Join our Rocket e-club | Receive local updates & deals from your favorite Johnny Rockets | Sign up today and get a FREE hamburger on your next visit AND on your birthday.** | Get special offers, featured promotions & more! | ** FREE hamburger with purchase of entrée and drink. Good for single hamburger only. Not valid with any other discounts, offers or special promotions. Equal or lesser entrée will be free. Offers valid at participating restaurants only. Offers shown are for example only. Offers may vary by restaurant location.