Jamie Foxx, who won the best actor Oscar for portraying late soul star Ray Charles in Ray, singled out Charles and director Taylor Hackford for praise.
Jamie Foxx was nominated for two Oscars this year
"Give it up for Ray Charles and his beautiful legacy," he said.
Foxx saw himself as the supporting actor in the film and Charles was really the lead actor, he said.
He added the success of black actors was "important". He said: "We just want to be included into the pot and make everything artistically better."
Here is a transcript of his acceptance speech:
I've got so many people to thank here tonight and first I'm going to start it out with Taylor Hackford.
You took a chance, man. That love for Ray Charles was deep down in the earth somewhere and you opened it up.
It's cracked open. And it's spilling. And everybody's drowning in this love. I thank you for taking a chance on this film. And thank you for waiting 15 years to get me to do it. I want to thank you.
I want to thank Crusader. I want to thank my agents. I want to thank Rick Kurtzman. I want to thank Kim Hodgert. I want to thank Steve Smooke. I want to thank my managers, Jaime King and Marcus King.
Let's live this African American dream - it's beautiful
Let's live this African American dream. It's beautiful. I'm glad I'm with you. I ain't never leaving you. I'm glad I'm with you.
I got a chance to meet a whole lot of people, experiencing this. And other people I want to thank, I want to thank my sister. Four feet 11 inches of nothing but pure love. I want to thank my daughter for telling me just before I got up here: 'If you don't win, dad, you're still good.'
I'm just... I see Oprah and I see Halle. I just want to say your names. I want to talk to you later. Both of you. Because Oprah allowed me to meet somebody by the name of Sidney Poitier.
And, yes, Sidney Poitier said: 'I saw you once. And I looked in your eyes and there was a connection.' And he says: 'I give to you responsibility.' So, I'm taking that responsibility tonight. And, thank you, Sidney.
This is probably going to be the toughest part of this speech. My daughter shares my grandmother's name, Marie. My grandmother's name is Estelle Marie Talley. She's not here tonight. And this is going to be the toughest part.
When I would act the fool, she would beat me.. and she could get an Oscar for the way she whupped me
But she was my first acting teacher. She told me to stand up straight. Put your shoulders back. Act like you got some sense.
We would go places. And I would wild out. And she would say, 'Act like you've been somewhere.' And then when I would act the fool, she would beat me. She would whup me. And she could get an Oscar for the way she whupped me because she was great at it.
And after she whipped me, she would talk to me and tell me why she whipped me. She said I want you to be a southern gentleman.
She still talks to me now. Only now, she talks to me in my dreams. And I can't wait to go to sleep tonight because we got a lot to talk about. I love you.