I had watched all of the Adventure Time Stakes yesterday before finding out Olivia Olsen (the voice of Marceline the Vampire Queen) was coming to HMV London, Oxford Street for a signing of her new book including a live performance! I adored Adventure Time Stakes and I drew a picture of Marceline and Princess Bubblegum. I thought to print out the drawing and give it to Olivia when I went along – she really loved it and was truly amazed! She thought it was actual art from show at first! That was an amazing evening indeed.