Talent agencies commercialize idols by recruiting preteens and teenagers with little or no experience in the entertainment industry, and market them as aspiring stars.[8][9] Idols are predominantly singers, but are also often trained in acting, dancing, and modeling.[10][11][12][13][14][15][16] Music from idol singers is generally categorized under J-pop,[17] though talent agencies may label them under the sub-genre "idol pop" for further distinction.[8][18] Conversely, some talent agencies do not rigorously train their idols,[19] and market their idols as amateurs who will gain experience over the course of their careers and with the support of their fans.[8][13] Many idol singers find success as groups rather than individually.[14]