Takashi Murakami is one of my favourite artists. How could he not be? His flowers are so damn cute. They only time I have seen an artwork of his in real life was in a little gallery in a chilly place called Aspen. They were a series of prints and were so beautiful... I almost died from the cuteness, honestly. Who knows what I would do if I ever saw one of his sculptures.
Artist Bio and examples of work here: http://english.kaikaikiki.co.jp/artworks/list/C4