R&B’s biggest stars came together yesterday to pay their final respects to eight-time Grammy winner Luther Vandross.

Family, friends, and fans of the legendary singer gathered at the Riverside Church for a stunning memorial service that concluded in an all-star performance of Vandross’ hit single, “Power of Love/Love Power.”

The mourners seated in the first few rows of the church read like a list of who’s who in the music business: current stars such as Alicia Keys and Usher were mere feet away from those who inspired them, like Stevie Wonder, Aretha Franklin, and Patti LaBelle.

All were present to remember the 54-year-old Vandross, who died July 1 at a New Jersey hospital, two years after he suffered a debilitating stroke. The soul singer had sold more than 25 million records throughout his illustrious career.

Vandross’ gold coffin sat at the foot of the altar, where a single, simple floral arrangement ? white lilies mingling with white and yellow roses ? had been laid. Seated in the front row was Vandross’ mother, Mary Ida, who was surrounded by the R&B icon’s nine nieces and their 11 children. LaBelle, a long-time friend, read a poem written by Ida, and said, “There are no sad faces here today. It’s not a mournful service. I’m celebrating because Luther would want us to.”

Despite heavy rains, mourners lined up for two city blocks before the church opened, but once inside, stirring musical tributes by Wonder, Franklin, and Cissy Houston made it all worthwhile.

Houston sang the gospel standard “Deep River,” while Wonder performed a moving rendition of gospel song “I Won’t Complain.” Franklin fought back a sore throat to bring the choir and clergy to their feet with “Amazing Grace.”

Before the funeral service, Vandross, a New York native, got to take one final tour through Harlem. A hearse carrying the singer’s remains made a stop outside the Apollo Theater, where Vandross first got his start.