"I want to thank God, first and foremost", she said.
Mars has been on an R&B adventure with his latest album, "24K Magic", which was inspired by '90s R&B.
In a pre-recorded speech, former First Lady Michelle Obama, a fellow Chicagoan, praised Chance for his work.
A lifetime achievement tribute to New Edition came in a three-part performance with help from the actors from the BET biopic about the band.
An energetic Bruno Mars kicked off the 2017 BET Awards with a fun and funky performance on a night where he could win his first BET Award. To everybody who thinks there's no such thing as second chances, I'm here to tell you, that's a lie.
Hopefully she decides to go to the BET awards next year, so we can be treated to more of her exciting looks. The sexy rapper recently took to her Instagram page saying she is the most awarded female rapper in history.The Anaconda sensation said she has clinched more than 189 awards making her surpass Missy Elliot who apparently has earned 189 awards.
Kendrick Lamar, who surprised the audience when he performed with Future, won best male hip hop artist.
Although Chance the Rapper missed out on winning best male hip hop artist, he was still a big victor Sunday night.More news: Five people reported missing in Grenfell Tower inferno FOUND safe and well
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Beyonce, who reportedly had her twins earlier this month though she hasn't commented on the topic, was the top nominee with seven.
Her younger sister, Solange, also picked up the Centric award and celebrated her birthday after turning 31 on Saturday.
Still Beyonce had words to share when she won the viewers' choice award through a young duo, Chloe x Halle, that the pop star asked to pick up her award.
Solange held a moment of silence later on, and the show also honored some of the minorities who died at the hands of police officers, including Trayvon Martin, Philando Castile, Eric Garner and others.
Winners in film and TV included "Hidden Figures" for Best Movie, Taraji P. Henson for Best Actress and Mahershala Ali for Best Actor.
"Mary J. got that break up body".
Hip-hop trio Migos, who won best group, also won over the audience with its performances of the hits "Bad and Boujee", "T-Shirt" and "Congratulations", with Post Malone.
Presenters include Jamie Foxx, Queen Latifah, Trevor Noah, Jada Pinkett Smith, Issa Rae and Yara Shahidi.