Soul star Green enjoyed great popularity in the early and mid 1970s
US soul singer Al Green will be honoured with a lifetime achievement prize at the Black Entertainment TV (BET) Hip-Hop Awards.
The 62-year-old star, who has been singing since the age of nine, is best known for hits such as Let's Stay Together and Love and Happiness.
R&B singer-songwriter T-Pain has topped the list of nominations with five for his work with other artists.
The award ceremony will take place in Los Angeles on 24 June.
T-Pain appears three times in the best collaboration category.
Chris Brown's Kiss Kiss, Flo Rida's Low, and Kanye West's Good Life all feature T-Pain.
The star is also up for the viewers choice prize for his track with Brown, and video of the year for West's Good Life.
"T-Pain is everywhere," BET executive vice president Stephen Hill said. "He's got five nominations, none of them for his own work.
Nelly is expected to perform at the awards
"He's had a great year; he's introduced a new element," Hill said, referring to T-Pain's synthesized vocals that have been replicated by other artists such as Snoop Dogg.
Kanye West and Keyshia Cole received three nominations, while Mary J Blige, Alicia Keys and newcomer Flo Rida received a pair each.
Meanwhile Quincy Jones will receive an award for his humanitarian work.
"Besides being the best black awards show that we have, also being one of the best awards show period, their ratings are through the roof," said Nelly, who is set to perform at the live awards show.
"They're tuning in - black, white, Japanese, Chinese - you got it, they're tuning in, which says a lot."
Lil Wayne, Blige and Mariah Carey have also been lined up to perform on the night.