I hereby launch a monthly tradition! Art Slob wishes to salute an artist who has done a bang up job and is generally really groovy. Few artists are this groovy....
Yves Klein was a French conceptual artist (I guess) who did a lot of interesting things. Things like jump into midair for a photo (taken by a trusted friend, surely) entitled 'Leap into the Void'. While Yves prided himself on his judo blackbelt status, he, nevertheless, broke a bone or two as a result of this particular leap. That's commitment, kids.
One of the many things Klein was art-world-famous for was his decision to identify himself almost exclusively to one shade of blue.

Anytime you saw that Yves Klein blue colour as a monochrome painting (or applied to objects like a rhino head), you were to think, "Yves Klein!"

The man was a self-marketing genius. Klein was also an artist of grand gestures.

Here we see Klein as the master impressario. He gives verbal orders to his nude models on how to apply his blue paint to their bodies and how to press those bodies against the white surface shown at the left side of the photo. Events degenerated into a knock 'n drag around, fortunately. Just look at this photo below for a few hours (over the next week or so) as I have. Note the levels of categorical juxtaposition in form and theme. If this is a dream, don't wake Bobo up! Fine work, Yves. Bravo, sir. Bravo.

The evening, entitled 'Monochrome Symphony Performance' was set in a Paris art gallery and attended by the who's who of French society. The symphony played a single note throughout (or was it silent?).
Klein was a man of style first and foremost. Note (photo below) the fine tailoring of the artist's vest and trousers whilst sporting the latest in post WWII flame-thrower technology.

My favourite Klein performance (title unknown - AS) was when the artist met a very sophisticated German collector at the top of a stone bridge. As per the agreement, the collector presented Klein with a box containing gold coins with the 1960s value of $10,000 (US). Klein tossed half of the coins into the river below and walked away with the rest. What did the German collector get for his money? A great moment in art history.