Earlier this year, the R&B star Kali Uchis released her album Sincerely. Since then, she’s been touring arenas and sharing stages with some very big surprise guests. Now, there’s another star who could conceivably join her onstage at any moment. Much like Uchis, Ravyn Lenae started out on the artier fringes of the R&B world before finding mainstream fame. Right now, Lenae’s 2024 song “Love Me Not,” a surprise TikTok smash, is sitting comfortably in the top 10 of the Billboard Hot 100. (It’s #8 this week, and it’s gone as high as #5.) This morning, Uchis and Lenae have a new song together.