Samuel L. Jackson, Anthony Hopkins, et al. Attend 'Power of Love' Gala

Related: Anthony Hopkins, Power of Love Gala

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Keep Memory Alive's 16th annual Power of Love Gala on Saturday, Feb. 18, at MGM Grand Garden Arena in Las Vegas brought out some of the biggest names in sports and entertainment to celebrate Muhammad Ali's 70th birthday and raise funds for the Cleveland Clinic Lou Ruvo Center for Brain Health and the Muhammad Ali Center.

Highlights of the evening included a heartfelt "Happy Birthday" serenade by Stevie Wonder, Snoop Dogg leading the crowd in chanting "Ali" during his performance of "Who Am I (What's My Name)?" and famed boxers Sugar Ray Leonard, Evander Holyfield and Tommy "Hitman" Hearns joining LL Cool J on stage for "Mama Said Knock You Out." Stars like Sean Combs, Samuel L. Jackson, Terrence Howard and David Beckham gave personal remarks and remembrances about "The Greatest" while Lenny Kravitz, Samuel L. Jackson, Anthony Hopkins, et al. Attend 'Power of Love' Gala Cee Lo Green and Kelly Rowland performed for Ali and the sold-out crowd of about 2,000.

The once-in-a-lifetime birthday celebration, "Ali 70th From Las Vegas," will air nationally on ESPN2 on Saturday, Feb. 25, at 10 p.m. local time in all markets. ABC will air the celebration in Las Vegas at 4 p.m. PT that day as well. For possible ABC broadcast in all other markets, viewers should check their local listings.

Performers and celebrity supporters who appeared at the event included Cindy Crawford, Randy Gerber, Samuel L. Jackson, David Beckham, Larry King, Quincy Jones, Ken Jeong, Buzz Aldrin, Snoop Dogg, LL Cool J, Common, Lenny Kravitz, Sean Combs, Anthony Hopkins, John Legend, Chris Cornell, Cee Lo Green, Joe Perry, Slash, Terrence Howard, Kris Kristofferson, David Copperfield, Siegfried & Roy, Andre Agassi, Stefanie Graf, Jim Brown, Randy Couture, Brad Garrett, Kelly Rowland, Dave Koz, Robin Leach, James Gandolfini, Steve Schirripa, John Paul DeJoria, Tony Danza, Raphael Saadiq, Samuel L. Jackson, Anthony Hopkins, et al. Attend 'Power of Love' Gala Haley Reinhart, and Sammy Hagar. Boxing icons who attended include Manny Pacquiao, Mike Tyson, Sugar Ray Leonard, Evander Holyfield, Ken Norton, Earnie Shavers, Leon Spinks, Ray "Boom Boom" Mancini and Tommy "Hitman" Hearns.

In keeping with its 16-year history, the Power of Love Gala showcased a celebrity-chef-packed dinner featuring creations by Tom Colicchio, Scott Conant, Michael Mina and Wolfgang Puck. Guests were treated to a Dom Perignon reception and were able to bid on one-of-a-kind live and silent auction items, including Muhammad Ali's boxing gloves he wore to defeat Floyd Patterson in Las Vegas in 1965 and an extravagant vacation of a lifetime for two couples on David Copperfield's private island in the Bahamas.

The gala's celebration for Ali aligns with the Cleveland Clinic Lou Ruvo Center for Brain Health's Samuel L. Jackson, Anthony Hopkins, et al. Attend 'Power of Love' Gala recent launch of a landmark study examining the long-term brain health of professional fighters. Aiming to improve the safety and health of fighters, the study will help determine whether magnetic resonance imaging (MRI) of the brain, along with other tests, can detect subtle changes in brain health that correlate with impaired thinking and functioning. Researchers hope the information uncovered by this research will eventually result in better ways to prevent permanent brain injury in not only fighters, but also in others who may suffer from brain trauma.