What becomes a legend most? Well, a bunch of celebrities gathering to sing your praises ain't half bad.
Especially if you're boxing legend Muhammad Ali and stars like LL Cool J, Cindy Crawford, Kelly Rowland & and Lenny Kravitz are flocking to the MGM Grand Garden in Las Vegas for your Keep Memory Alive Foundation's 16th annual Power of Love Gala.
And there was plenty of love to go around, from our star-studded red carpet interviews to the tribute concert and all the Vegas glitz and glam...
On the event's red carpet, singer Rowland told E! News that there's "so much energy in the air" and later went on to amp it up further with a soaring version of "The Greatest Love of All" accompanied by some guy named Stevie Wonder (who earlier in the day had performed at Whitney Houston's memorial service).
The MGM Grand, the site of seven of the champ's bouts, made the perfect spot to honor Ali's 70th birthday, reflect on his inspirational 30-year fight with Parkinson's disease and raise money for the Cleveland Clinic's Ruvo Center for Brain Health and the Muhammad Ali Center in Louisville.
For rocker Lenny Kravitz it was simple: "He's a hero, he's a hero of all sorts, he became a hero of the planet because of what he stood for...He fought with dignity and class and I love him."
In addition to Ali's heroics in the ring and in real life, singer Ne-Yo also lauded Ali as "the ultimate showman and that's what I've been trying to do my whole career as well."
John Legend also came by to cheer on the champ: "Obviously he's the greatest boxer of all time but he also has swagger and I think hip-hop takes a lot of its energy from that."
Of course the night wasn't all about showmanship. Case in point, David Beckham, instead of posing in his boxers as he often does, took to the stage to praise a great boxer and his good works.
And in other ripped from in the headlines news, rapper and NCIS: Los Angeles star LL Cool J took the stage in boxing gear for a special version of "Mama Said Knock You Out" crafted especially for Ali's big night.
Boxing legend Sugar Ray Leonard spoke of how Ali paved the way for him and others, "He was an incredible fighter and individual, so inspirational."
Tennis star Andre Agassi also sang the praises of Ali, who has "created a huge impact and it speaks for why we love him so much."
One of his daughters, Rasheda Ali, was also on hand, with a personal lesson to pass on. Her dad's greatest piece of advice was to "believe in yourself."
It's a lesson he's lived, and keeps on living. Happy 70th champ, and may you fight on for many more.
Check out the video above to see what all the celebs have to say about The Greatest, or click through our scorching hot gallery