use music. miley was a good student. she worked hard. she didn t fight your advice. reporter: renee grant williams was miley s voice teacher when she was 12. she had an ingenuous way of getting what she wanted by being charming and lovely and enthusiastic and willing to take the burden of work on as well. reporter: and by 2001, what miley wanted became crystal clear, when the family left tennessee for toronto. where billy ray was filming the tv show duck. miley, she kept saying, daddy, can they write something in for me? so they wrote her in in one episode. from the time she did that one episode, she was, can they write me in next week? a few weeks after, she and i went to see mama mia in toronto and i ll never forget it.
first album in seven years. reporter: backed by a slew of a promotion and carefully planned performances on jimmy fallon s show, it was the history of rap. reporter: and on one of the highest rated saturday night live of the year he was at times savvy. come on new york! reporter: and silly. oh, freak out reporter: the music. the moves. the motivation. that is the justin timberlake experience. my name is justin timberlake and i m going to sing.
look at her hannah montana audition. you can see that she knew exactly what she was doing. she knew that the role would be a stepping stone to other things. merchandise. tv. music. she was really the first start to engrace all of these things. reporter: in 2007, she relieved hannah montana 2 to miley cyrus and tv souped track and under her name. her breakout hit went platinum. reporter: in 2008, a hit that miley was feeling the pressure of being one of the biggest teen stars on the planet. it s kind of like a mother, you know? trying to let their young go and let them grow up and i think they are having a hard time with that. reporter: miley s next
rumored to be about her fiance liam hensworth. i think she wants to show the more sensitive side of her and not just a party girl side too. reporter: soon after its release, wrecking ball became the number one song in the country. miley and liam announced they were breaking up for good. an snl invited her to host the show. who are you? what do you mean? i m old you! reporter: on everybody s mind? what will the wild child do next? miley cyrus! reporter: but surprisingly, miley was pretty tame. there was no nudity, no twerking and no apologies for the vmas. if i owe anybody an apology, it s the people who make the bottom halves of shirts. reporter: the mild-mannered performance kept the focus on the music. she is showing, you know, the
parton for a godmother. in fact, later in life, miley recorded her own classic version of joey. i think looking to dolly, looking at to the sort of eccentric of dolly parton showed her style. reporter: she was just a toddler in 1993 when she was on stage with many of music s biggest names. we are doing a tribute of elvis presley at the memphis, tennessee, she broke away from the nanny and waddled out on the stage which was the blues version of amazing grace. she came out on stage with some of the biggest stars in the world and she just kind of became one with every singer and everybody was holding her and she had her hands up. she was singing. the last guy to hold her at the end of the song was tony bennett