The Billboard Awards were last night. As expected Bobbi Kristina accepted the award for her late mother, Whitney Houston. What was not expected is Whitney’s assistant and sister-in-law, Pat Houston accompanying Bobbi on stage to accept the Billboard Millennium Award. John Legend and Jordin Sparks performed the tribute to Whitney Houston and Bobbi Kristina was visibly moved. There were also tributes to Robin Gibb, Donnna Summer, and MCA. See the dynamic performance from J. Legend and J. Sparks below.