Post links to musicvideos (from YouTube etc.) that you like and want to show others.
This is what I want all you to see;
Maaya Sakamoto - Platina (live)(note: Maa-chan has nice "windblown" hairstyle in that live recording)Card Captor Sakura last (3rd) ending theme. A song that makes you happy no matter how bad day you are having, and yes, it really works. Try it

Nowadays there's so many "magical girl" style animes around like Tokyo Mew Mew (aka. Mew Mew Power), Pretty Cure or Magical DoReMi but the things were different in 1997 when Sakura started in Japanese TV. There had been only one megapopular and well done maho no shoujo (magical girl) anime before that, the Sailor Moon.
All the songs in CCS are not as great as this, but they are all catchy and makes your mouthcorners moving towards 12 o'clock

Here's
Original Animation Video of the song.