Lady Gaga, Ice T among celebs at Indianapolis 500
Hours before the 100th running of the Indianapolis 500, a number of celebrities had already arrived at Indianapolis Motor Speedway, with many participating in the event later Sunday.
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Lady Gaga arrived early, and will reportedly join 1969 champion Mario Andretti in a two-seat race car that will lead the pace car for three laps before the race, according to the Indy Star's Dave Lindquist.
Meanwhile, Ice T met up with three-time champion Dario Franchitti.
Country star Darius Rucker arrived with his family. He will also perform the national anthem.
"Star Trek" star Chris Pine is also part of the festivities, and will wave the green flag to start the race.
Finally, a number of hometown Indiana Pacers are attending The Greatest Spectacle in Racing - including George Hill, Myles Turner, and Glenn Robinson III.