While Hillary Clinton travels the country promoting her new memoir, "Hard Choices," a posse of the former secretary of state's biggest fans is following her every move in style: on board "the Hillary bus."

The campaign-style bus, which was made and wrapped in the key early-voting state of Iowa, was created by Ready for Hillary, the super PAC urging Clinton to run for president. For the month of June, staffers of the group are calling it their home, logging thousands of hours traveling from city to city just to greet Clinton at her book tour stops and sign up new supporters.

The "Hillary Bus" will follow Hillary Clinton from stop to stop on her nationwide book tour.

Wrapped with the group's logo and, on the back, a massive photo of Clinton's face, the flashy mobile coach is hard to miss, and doubly serves as a mobile-advertisement for the group's cause.

Overcome by new car smell. Inside @TheHillaryBus pic.twitter.com/2THjIuwNrx

- Liz Kreutz (@Liz_Kreutz) June 10, 2014

On Tuesday, the "Hillary Bus" - which touts a shower, brand-new leather seating and musical entertainment for those on the road (they pass the time singing "Frozen's" "Let It Go") - arrived at the wee hours of the morning for Clinton's first book signing at a Barnes and Noble in New York. It was there that Ready for Hillary staffer, Sean England, who had slept on the bus the night before, took us inside for a tour.