He was seen chatting with NFL legend Tom Brady and Bon Jovi guitarist Richie Sambora.
Anna Nicole Smith's daughter attends the party where her parents met
Dannielynn Birkhead, the daughter of the late Anna Nicole Smith and Larry Birkhead, is a Kentucky native and has been coming to the race all her life.
The party was where her parents reportedly originally met.
Boy bands in high demand
There was no shortage of 90s-era boy bands at the party.
Backstreet Boys members Kevin Richardson, and Howie Dorough performed with NSYNC member Joey Fatone, while Boys II Men also serenaded the crowd.
For country music fans, Travis Tritt and Eddie Montgomery performed for the crowd that raised $16 million for diabetes research.
Serious NFL talent
With the attendees of the party alone, you could field a competitive NFL team. Several members of the Green Bay Packers, including quarterback Aaron Rodgers, attended the party, and NFL legend Tom Brady was seen talking with Bezos.
The eclectic crowd also include "That 70s Show" actor Wilmer Valderrama and "LA's Finest" actor Ryan McPartlin, as well as country singer Lee Brice and Daryl McDaniels from Run-DMC. Master P also performed on stage, while Bon Jovi guitarist Richie Sambora made an appearance.