You must know that using music in your videos requires a license from the ownner of the copyright.
Some sites that allow video publishing (like Facebook and YouTube) do automatic control on the video to detect no-licensed music. The consequences in this case can be the mute of the audio or a warning message asking you the license before publishing.
The best way to avoid video publishing problems is to use licensed music. You can find tons of licensed and free music on the Internet. Look for music with the "Creative Commons" license and read the terms.
We can recommend you these sites, where you can download legally and for free all kind of music: