How did Tony tiger get his slogan their Great?
Tony the Tiger’s slogan, “They’re grrrreat!”, came from Kellogg’s advertising work in the 1950s and was popularized by his voice actor Thurl Ravenscroft. Early ads used slightly different wording like “You bet your life they’re Gr-r-reat!” before the familiar version took hold.[1][2]
## How it started
Tony the Tiger was created for Kellogg’s Frosted Flakes in the early 1950s by the Leo Burnett agency, and the mascot was developed through multiple artists and refinements. The catchphrase emerged as part of the character’s growing personality in commercials.[1][3]
## Why it stuck
Thurl Ravenscroft’s delivery made the line memorable, stretching out the “grrreat” in a way that matched Tony’s upbeat, powerful personality. That performance turned the slogan into one of the most recognizable in food advertising.[1][2]
## Simple version
In short, the slogan came from Kellogg’s ad team, but **Thurl Ravenscroft’s voice** made it famous.[1][2]
Sources