Machine Gun Kelly has gone vulnerable at the 2022 Billboard Music Awards. The musician slowed things down for the May 15 awards show with his performance of “Twin Flame,” a ballad that’s a clear tribute to his fiancée Megan Fox, who was also present.

Kelly referred to Fox as a “woman” at the start of the performance, though it’s not yet clear if the pair have actually married since they got engaged on Jan. 11. At a particularly emotional moment in the performance, Kelly interrupted her singing and declared, “It’s for our unborn child.” Kelly ended with the appropriate lyrics: “I’ll see you in my dreams / That changes everything / Now I gotta set you free.” Fox appeared in tears when the camera cut her off at the end of the performance.

Kelly and Fox posed for photos on the red carpet earlier in the night. Fox wore a black David Koma dress and Kelly a spiked Dolce & Gabbana suit. He changed into a simpler t-shirt and jeans to perform, though a pink crystal tear adorned his face throughout the evening.

The couple often refer to the concept of twin flames in relation to their romance. Fox’s two-stone engagement ring is meant to symbolize the idea, and in a recent interview with Glamour, Fox said, “I think when you find people coming together whose souls know each other, who’ve traveled here to start over, there’s something undeniable about that.”