No, you cannot buy the Peter Max portrait of Taylor Swift. Reports that it exists are very much true. But reports that it is for sale are not. I mean, I'm sure it would pull in a lot of money from someone who loves Swift. Max is the very iconic pop artist who was the It Artist throughout the '60s and beyond, with his colorful, cosmic and psychedelic style. Swift remembers noticing his work when she was just a little girl on summer vacations. The Tampa Tribune used the portrait in advance of her Fearless concert stop there, and she later told the publication, "The colors were so vibrant and beautiful! His art is like another world to me, and I can't even explain how much it means to me that he did my portrait."
Source