Sunday's Billboard Music Awards paid tribute to music stars who have passed away this year.
Whitney Houston was honoured with the Millennium Award, which Bobbi Kristina collected.
The teenager broke down in tears as she took to the stage, saying: "I really want to say thank you to everyone who supported us through it all. Not just from when it was good but when it was bad, too."
Bobbi Kristina continued: "Thank you for showing that much love, because she deserved it...I'm just blessed to have been in such an incredible woman's life. There will never be another one, ever."
Jordin Sparks performed Whitney Houston's 'I Will Always Love You' in an emotional moment.
Tributes were also paid to other music stars who have recently passed away.
British singer Natasha Bedingfield sang 'Last Dance' in front of a video tribute to Donna Summer, who died of lung cancer last week.
[Related article: Robin Gibb has died aged 62]
There was a moment's silence as the audience remembered Bee Gee Robin Gibb, who died on Sunday. Co-host Julie Bowen said: "His voice and music of the Bee Gees will live on forever".
Cee Lo Green paid tribute to Beastie Boys' Adam Yauch, who died earlier this month, by performing '(You Gotta) Fight for Your Right (to Party!)'.