In 2003, introduced by Isaac Green of Columbia records, Rossomando met Carl Barât in New York City and agreed to fill in for Doherty in an upcoming US tour for The Libertines; this was followed by a trip to London to play Top of the Pops and Reading and Leeds festival.

It was during this time when Rossomando and Barât began to formulate their ideas that would later embody Dirty Pretty Things.

"Shallow" was nominated for and won Best Original Song – Feature Film at the 2018 Hollywood Music in Media Awards.

[5] It also received a nomination in the category of Best Original Song at the 23rd Satellite Awards,[6] and from the Los Angeles Online Film Critics Society.

[8][9] Rossomando also penned the X Ambassadors song Great Unknown[10] for Disney's version of Jack London's book The Call of the Wild which starred Harrison Ford.