Google rationalized the group of video search results sometimes intermingled with usual results, but only for queries bands and music artists.
"People frequently come to Google to find music videos, and this week we enhanced our results so now when you're searching for your favorite band or album, you'll find popular clips prepared in a new way. For example, search for [michael jackson] and you'll find some of the King of Pop's most famous videos, counting clear text indicating the length of the video, the album and the year it was published. The feature scans the entire web for video content and algorithmically ranks the best sources for each song. Rather than return recurring links, we group results for the same song together, making it easier to scan and choose the song you're looking for."
The results aren't always the best music videos and Google should give options to sort them by year, album, genre. Another issue is that, even while Google shows results from different video sites, the main link typically sends you to YouTube and that's not fair.