Holley has also developed and/or worked with artists including Meredith O'Connor; Holly Brook aka Skylar Grey; Jackie Evancho; Nikki Williams; Katie Costello; Bebe Rexha; Martha Wash; Rebekah del Rio; Kat Perkins; Itaal Shur; and Dave Eggar.
Her songs have been featured in prime time television series such as Grey's Anatomy, 90210, American Idol, The Office, Private Practice, So You Think You Can Dance, Ugly Betty, The Hills, Keeping Up With the Kardashians;[2] feature films and trailers including Pursuit of Happyness, Kiss of the Dragon, and David LaChappelle's Rize; and runway shows for New York Fashion Week and ad campaigns for global brands such as Mercedes-Benz, Pepsi, and Microsoft.
In 1997, Heather Holley and Rob Hoffman were asked to write and produce a demo for a then unknown, former Mickey Mouse Club member named Christina Aguilera.
In 2004, Holley and Hoffman were commissioned by Mercedes to write and produce a new Christina Aguilera song Hello (Follow Your Own Star) for the international advertising campaign launching the Mercedes-Benz A Class.
[citation needed] In 2006, Heather's song "Here to Stay" was included on Christina's Back to Basics album and featured in a worldwide Pepsi commercial campaign.