Lamar is expected to open Sunday's show which will also feature live performances by U2, Cardi B, Pink, Miley Cyrus, Sting, Sam Smith and many others.
"I just wanted to remind the audience that the only thing more frightening than watching a black man being honest in America, is being an honest black man in America", Chappelle said.
Lamar has already won two awards at the 2018 ceremony.
The rapper thanked Rihanna, who appeared on stage with him.
Trump was accurately pointing to record-low unemployment for U.S. minorities, although critics note that the USA economic expansion began well before under his predecessor Barack Obama.
"This trophy to hip hop", Lamar said.
Awards were also posthumously given to Leonard Cohen, for best rock performance, and Carrie Fisher, for best spoken word album with her reading of her memoir The Princess Diarist.
Childish Gambino, the alter ego of actor Donald Glover, won his first ever Grammy for "Redbone" which was named best traditional R&B performance.
Three artists who performed at a country music festival that became the site of the deadliest mass shooting in modern US history honoured those music fans lost at deadly concert attacks with a tearful performance at the Grammy Awards.
She said she's aware that some are saying the music industry took too long to catch up to the #MeToo and Time's Up movements, but she says that's because there are so fewer music awards shows this time of year. Daddy Yankee and Little Big Town were among the artists to perform during the show.
NY Gov. Cuomo Withholds Comment On Corruption Trial
The governors said they were hoping to file the suit in coming weeks although it was unclear precisely where it would be filed. Murphy said called it "an bad law", saying states need to fight back against the Republican policies in Washington.
IOS 11.3 stops iPhone slow-down, but should you upgrade?
For example, users could view virtual, interactive exhibits in museums or animate images in movie posters, according to Apple . Apple had introduced this feature back in June month at WWDC which is finally available for your iOS device .
Hillary fought to keep pervy adviser on staff
That night he got a call from Bill Clinton, who extolled the virtues of his new animal-free diet: "If I can do it, you can". During the 2016 presidential campaign , Strider worked with the Clinton-supporting organization Correct the Record.
Pat Shurmur believes Eli Manning has 'years left'
In a city like NY , he's wise to extend the olive branch before building a 20-foot wall around the Giants' facility. It will be by the quarterback after Manning, whether that be Davis Webb , the No. 2 overall pick or somebody else.
Get 2 Sonos One Smart Speakers for the Price of 1 HomePod
There's no way to set HomePod to default to Spotify , or Tidal, or whatever other service you'd like to use with voice control. This will mean that Apple should be listing the cable cord as an item in the box if it is separate from the HomePod itself.
Move Over NFL, the XFL Is Back!
When asked afterward if Kaepernick would be allowed to play, McMahon said, "Why not?" No cities or TV partners were named. The first thing McMahon said was that the "new" XFL will looks to "give the game of football back to fans".