 " Rockstar 101 " is a hip hop song which lasts for three minutes and fifty @-@ eight seconds . It features an " aggressive " guitar solo from Slash , according to Leah <unk> of Entertainment Weekly . Rihanna uses her lower register and " heavy " <unk> to perform the most of the song , and she " <unk> " the lyric " The only thing I 'm missing is a black guitar " . Rihanna " struts her stuff " as she insists that she is a " big shit <unk> " as she <unk> that " I 'll never play a victim / I 'd rather be a <unk> " . Sean <unk> for Spin thought that when Rihanna sings the line " Got my middle finger up , I don 't give a fuck " , it sounded as though she had never sworn before due to how she <unk> <unk> the word ' fuck ' . 
