Multiple people claimed to have coined the term "iGeneration" (or "iGen"). American rapper MC Lars is credited with using the term as early as 2003. Demographer Cheryl Russell claims to have first used the term in 2009. Psychology professor and author Jean Twenge claims that the name "iGen" "just popped into her head" while she was driving near Silicon Valley, and that she had intended to use it as the title of her 2006 book "Generation Me" about the Millennial generation, until it was overridden by her publisher.