Sotheby's exhibits famous works

Sotheby's auction house brings the key pieces of its spring contemporary art sale to Los Angeles including works by Lichtenstein, Warhol, and Calder.

The works include an iconic comic book-inspired Lichtenstein painting from the early 60s and a painting of Elvis Presley by Andy Warhol.

The artworks will be exhibited in Los Angeles before going to auction in May.