<P> In the 2007 CGI / live - action film adaptation and its 2009 sequel , they were voiced in dialogue by Justin Long , Matthew Gray Gubler and Jesse McCartney . Bagdasarian Jr. and Karman continue to perform the singing voices for Alvin , Theodore and the Chipettes , but Steve Vining does Simon 's singing voice . The project has earned five Grammy awards , an American Music Award , a Golden Reel Award , and three Kids ' Choice Awards , and has been nominated for three Emmy awards . </P>
<P> In the 2007 CGI / live - action film adaptation and its 2009 sequel , they were voiced in dialogue by Justin Long , Matthew Gray Gubler and Jesse McCartney . Bagdasarian Jr. and Karman continue to perform the singing voices for Alvin , Theodore and the Chipettes , but Steve Vining does Simon 's singing voice . The project has earned five Grammy awards , an American Music Award , a Golden Reel Award , and three Kids ' Choice Awards , and has been nominated for three Emmy awards . </P>
who plays the chipmunks in alvin and the chipmunks
who plays the chipmunks in alvin and the chipmunks
Justin Long Jesse McCartney
Justin Long Jesse McCartney