Only ET was with the pair on the set of the video, and honestly, there are no words to do it justice. Trust us, just watch.
But Braxton did get serious when asked about the inspiration behind the song.
"It's about being transparent and it's about being open and honest with the person that you love," she said. "It's just saying, 'If I don't have you in my life, I don't have anything!' Because sometimes we say things that we don't mean, and people can get the wrong message by having an argument or not being able to express ourselves, so this song is just something that you can just play and let it talk for you."
"If I Don't Have You" will be featured on Braxton's upcoming album, Calling All Lovers.
"The album is not about just one type of love," she explained. "It's about loving yourself, it's about the lover who's trying to find love. It's about the lover who's in love with someone and they don't necessarily love them back. It's all of us -- everybody who wants to be loved, honey."
Braxton may be lucky in love (she's been married to record exec Vincent Herbert since 2008, welcoming a baby boy together in 2013), but these days she's doling out dating advice for big sister Toni Braxton.
"Toni Braxton need a man!" she laughed. "First of all, I tell her to open herself up. You know, don't be afraid to go outside of the house, I promise he's not going to ring your door bell and... be herself! She's a really cool girl and I think she would be a catch for any man. She loves football, she loves to eat, she loves to have fun. She would be a great girlfriend."
Tamar also opened up to ET about ending her long-running feud with fellow diva K.Michelle. Hear more about that in the video below.