Bieber originally promoted '' My World '' through a series of radio and television appearances . In summer 2009 , he was featured on the radio stations Z100 and Radio Disney . In September , he appeared as a presenter during the 2009 MTV Video Music Awards , and performed " One Time " at the network 's mtvU VMA Tour . In Canada , he performed " One Time " and " One Less Lonely Girl " during the finale of '' The Next Star '' at the end of the month . In October , Bieber performed " One Time " , " One Less Lonely Girl " and " Favorite Girl " on '' Today '' s Toyota Concert Series ; the crowd was the program 's largest of the year , surpassing that of an earlier Miley Cyrus performance . He also appeared on '' It 's On with Alexa Chung '' , '' The Ellen DeGeneres Show '' , '' Good Morning America '' , '' Lopez Tonight '' , '' Chelsea Lately '' , '' The Wendy Williams Show '' , and '' 106 and Park '' throughout November . Bieber also held a guest role on the Nickelodeon television series '' True Jackson , VP '' . During the winter , Bieber performed at several " Jingle Ball " holiday concerts . A performance as the Roosevelt Fields Mall in Long Island , New York was scheduled , but was cancelled after it was deemed an unsafe environment due to the exceptionally large crowd of 3,000 people . On 31 December , Bieber performed during the '' Dick Clark 's New Year 's Rockin ' Eve with Ryan Seacrest
2009 MTV Video Music Awards
2009 MTV Video Music Awards
My World (EP)