Keith Haring was inspired by Angel Ortiz aka LA II, a graffiti writer nearly 10 years younger than Haring.

They collaborated for a number years, but the collaborations have gone widely unacknowledged until recently. Even while Ortiz and Haring were actively collaborating in the studio, works were often listed in galleries as only Haring’s work. These days, Haring’s website shows about a dozen collaborations between Haring and Ortiz.

image via (Photographed by: Lois Stavsky)