[4] During the same time period, he began his career as a magazine photographer working for the Picture Group Agency based in Providence Rhode Island.

[5] His early work appeared in magazines including Time,[6] Newsweek, Esquire, Vanity Fair, and Rolling Stone.

[11] His subjects have included Martin Scorsese,[12] Robert Duvall, Johnny Cash, Will Ferrell, Kanye West,[13] Mel Brooks, Ben Stiller,[6] Penélope Cruz, Jet Li, Bill Murray, Joaquin Phoenix and Gwen Stefani.

[19] In early 2022, a touring exhibit of the photos, Days of Punk, premiered at La Termica Museum in Malaga, Spain.

Grecco has received 5 Awards of Excellence from Communication Arts Magazine and in June 2001 was named a Hasselblad Master.

[20] He also received several awards in the 2011 Prix de la Photographie Paris competition including ones for his portraits of Steve Martin and Martin Scorsese and in 2012 was one of the eight recipients of the Professional Photographer Leadership Award from the United Nations International Photographic Council.