Whitney Houston is gone but certainly not forgotten. This Sunday, friends and family will honor the singer’s chart-topping legacy at the Billboard Music Awards.

Houston’s daughter, Bobbi Kristina will make a special appearance to accept the show’s Millennium Award in her late mother’s honor, while John Legend and Jordin Sparks will perform a tribute. Sparks recently worked with Whitney, playing her daughter in the upcoming remake of Sparkle, due out August 17. The singer’s sister-in-law, Pat Houston, who recently signed the family up for a reality series, will also be on hand.

Houston has ruled the charts throughout her career and is the only artist to ever have seven consecutive number one singles on the Billboard Hot 100. She also holds the record for the highest selling soundtrack in history with 1992′s The Bodyguard, which sold over 42 million copies worldwide. Her rendition of Dolly Parton’s “I Will Always Love You” spent 14-weeks at number one in 1993 to become the biggest single in pop music history.

But Houston isn’t the only one being honored this weekend. With 32 number one singles throughout his nearly 50 year career, Stevie Wonder has earned himself the Icon Award. Carrie Underwood, Kelly Clarkson and Katy Perry, who will premiere her new song “Wide Awake,” are also scheduled to perform at this year’s show.

-Shannon Carlin, CBS Local