YouTube is launching a limited test of an AI-powered feature that allows creators to modify licensed songs for their Shorts videos, The Verge reports. The new capability, an extension of YouTube’s Dream Track feature, enables selected creators to generate 30-second soundtracks by altering elements like mood and genre of existing songs through text prompts. The system maintains attribution to original songs and clearly labels AI-modified tracks. The feature currently includes AI-generated voices from participating artists like Charlie Puth, Charli XCX, Demi Lovato, and John Legend. While specific details about available songs and partner labels remain undisclosed, reports suggest YouTube has approached major music labels about AI model training.