Sonic Drive-In is offering a sweet way for customers to cool off as temperatures heat up to end May. Starting Monday, the fast-food chain is offering half price milkshakes after 5 p.m. The deal applies to any size of their Classic Shakes and also their more decadent Master Shakes.

Sonic is giving fans a lot to sip and savor this summer. On Monday, the beloved drive-in chain revealed that it would not only be bringing back two fan-favorite Slush flavors (Watermelon and Lemonberry) but that it would also debut a "bold" new side item for fans to snack on: Cheesy Garlic Pepperoni Bites.

Sonic is our ultimate snack and drink destination come summertime, which is why we're excited to report that the chain’s launching so many goodies ahead of the warmer months – including their iconic half-price shakes deal!