Ninety9Lives releases are free to use and monetize in user-generated content (UGC) made by independent content creators in video content on YouTube, Twitch, & Mixer without the fear of copyright claims.
It's simple, just add this to your description:
Track: Axtasia - Spectrum [Ninety9Lives Release]
Music provided by Ninety9Lives.
Stream / Free Download: 99l.tv/SpectrumYU