Mike Tyson and Will Smith were among the early arrivals for Muhammad Ali's memorial service -- and served as pallbearers as the procession through Louisville started.
The 19 mile journey through Ali's hometown began Friday morning after Tyson, Smith, Lennox Lewis and Ali's family members carried his coffin to the waiting hearse.
The procession will end up at Yum! Center arena where Bill Clinton will deliver the eulogy for Ali at the memorial service.
Kareem Abdul Jabbar, who called Ali his mentor, is also in Louisville.