Tween girls became identified as a huge market during the 1990s. The pop music group the Spice Girls were an act based on a group of female performers representing character traits, with nicknames such as Scary Spice, Baby Spice, and Sporty Spice. They were originally a less edgy variation on the girl-group character acts such as the Mary Jane Girls organized by Rick James and Vanity 6 created by Prince, with an intended teenage audience. To the surprise of the recording industry, the Spice Girls were an enormous success with prepubescent "tween" girls, who identified with the flirtatious sexuality of the group and the "Girl Power" theme, which marketers subsequently promoted to the hilt. In 1998, the year the Spice Girls enjoyed their peak success, tweens spent an estimated $1.4 billion, according to a YTV Tween report. Marketing to tween girls is a full-fledged entertainment industry trend today, with toys and merchandise associated with television shows, music groups and celebrities, for example Justin Bieber, Miley Cyrus and Selena Gomez. In addition to toys such as dolls marketing to girls, they use common ideas and representations of toys that will make the biggest profits. Taking a look at Barbie dolls, there are many different editions of Barbie that make tributes to celebrities and other aspects of culture. Some of these editions include Marilyn Monroe, Diana Ross, Audrey Hepburn, Harley Davidson, and many more. The company Mattel uses idea they know will sell best, in addition to this they make sure the dolls have a certain appearance; small waist, thin legs, and large breasts. They are marketing not only what gives the biggest dollar value, but as well as following the guidelines for typical views of beauty within these types of toys. The toys along with the messages they send about body images are then mass produced to be sold to the audience of mostly girls ranging from toddlers to tweens. The dolls often times lack many features that would help make them more realistic, and send believable body image message to girls. Some of the features neglected to be shown on dolls such as Barbie's include: nipples, wombs, skin flaws, and the various skin tones found around the globe. This leaves the realistic view of women out, and instead changes it for blank features that is wanted by the public. Technology has been embraced by many toy companies because of the gender-neutral best-selling toys that it helps create. One example is the popular Tamagotchi toy invented in Japan in the 1990s.