Jazmine Sullivan [1]'s powerful BET Awards performance is one for the books. On June 27, the Heaux Tales singer [2] brought an unforgettable performance to the stage, thanks in part to a couple of special surprise guests. Rep. Maxine Waters kicked off the set by "reclaiming her time" before Sullivan launched into a soulful rendition of her songs "Tragic" and "On It." Ari Lennox joined her for the latter, and wow, the harmonies were simply heavenly [3]. This performance is even sweeter knowing that just a few minutes later, Sullivan would take home the award for best album of the year. Watch the clip above to see exactly why she's deserving of the major accolade.