Some may even argue Will got a bigger reaction than former Phillies players Chase Utley or Ryan Howard.
Will's mother asked her toddler at the time, "How big is Will?" and with each raise of his arms, the crowd cheered.
Action News Vault: How big is Will?
But that was 2008. So how big is Will now?
Well, Will is a 5'5", 14-year-old high school freshman that plays basketball, baseball, and soccer, and 13 years later, he is still known for his moment in the spotlight.
The video his parents put on YouTube went viral that day and has since been viewed 5.5 million times.
While all this time has passed, the Phillies have not come close to sniffing another parade.
In fact, they haven't even made the playoffs in over a decade. If and when there's another parade, Will and his family say they'll be there.
Full Interview: Jamie Apody interviews 'How Big is Will' kid 13 years after Phillies parade