We know that on Youtube website, we can probably search a lot of free music and videos. However, the Youtube search does not has the feature to search for music video only. Music video means a video with music. Even other video sharing sites also cannot do it, which usually showing result of all the unrelated videos in the search result.
A third-party search engine known as Cleepr is able to help you in finding music videos easily and quickly not only from YouTube but also from MySpace, DailyMotion, Metacafe, and other popular video sharing sites.
For example, when searching for lady gaga, the following results are shown:
As you clicked on any thumbnails in the search result, the video will play directly in a popup player stay on the same website. To visit the original web address of the video you are playing, just right-click the video thumbnail to Open Link in New Window. Happy finding for your favorite music videos!