7-Eleven is turning 90, and invites you to celebrate with a free Slurpee party.

Participating stores across the country are expected to give out an estimated 9 million free small Slurpee drinks from 11 a.m. to 7 p.m. on Tuesday.

The company said this tradition started on 7-Eleven's 75th birthday in 2002.

A new cotton candy Slurpee flavor is also available.

“7-Eleven Day is a celebration, not only of our birthday, but more importantly, of our customers. 90 years is a big birthday, and our customers are the ones who got us here," a company representative said.