But he wasn't always so dapper.
On Thursday, Wally's human, Molly, shared a photo of the Instagram-famous bunny before his first signature haircut.
"This is a photo of Wally's first Halloween in his baby yak costume," she wrote. "Just kidding ... this is really a photo of Wally before we ever did snippies [Wally-speak for haircuts]. I tried so hard to learn to brush him, but he became so anxious that he couldn't tolerate grooming sessions for more than a few minutes."