A Serge drawing from the mysteriously named Tokyosexwhale. Just who is Tokyosexwhale? Who knows! But I do know that he's got a blog HERE and is also on Twitter.
David Scrima is an illustrator from France who produces wonderful portraits of musicians. Some in Moleskine sketchbooks and some, ingeniously, by painting over old LP covers. Here's a great one of Serge. To see more of his portraits (including Brian Wilson, The Black Keys and the Beatles) visit his blog and his Tumblr.
Quibe is a French illustrator based in Paris. You can see more of his work on his website, his blog and his "visual mash ups" blog (for example - Darth Paul"!).