The R&B singer made a surprise appearance during Macy Gray's L.A. concert.
Bobby Brown has returned to the stage for the first time since the death of his daughter, Bobbi Kristina Brown.
The 46-year-old singer performed at Los Angeles' Hollywood Bowl on Sunday, popping in as Macy Gray's surprise guest.
WATCH: Bobby Brown Speaks Out After Bobbi Kristina's Death
The crowd welcomed Brown to the stage with warm cheers and claps before the two R&B crooners sang their duet, "Real Love," together during Gray's concert.
Gray, 47, gave Brown a big hug after the performance and then informed the crowd, "Y'all don't know that's one of the best people in the whole wide world… one of the greatest people I've ever met."
Brown came back out one more time to give a bow,l and he appeared to acknowledge Bobbi Kristina. "Thank you for your prayers, everybody," he told the crowd.
MORE: Nick Gordon Planning Own Service for Bobbi Kristina
Rolonda Watts, who has a CBS Play.it podcast, was at the show and told ET that Brown "acted very humble."
Bobbi Kristina, the only daughter of Brown and the late Whitney Houston, passed away on July 26 at age 22. She was found unresponsive in a bathtub on January 31 and was rushed to North Fulton Hospital in Roswell, Georgia. She was put on a ventilator before being placed in a medically-induced coma at Atlanta's Emory University Hospital, and she spent the last month of her life in a hospice care facility in nearby Duluth.
