The Pussycat Dolls first performed " When I Grow Up " on '' Jimmy Kimmel Live ! '' on May 20 , 2008 , on June 1 at the 2008 MTV Movie Awards and on June 12 on '' So You Think You Can Dance '' . The album was additionally promoted through an episode of the documentary series '' E! True Hollywood Story '' , which premiered through E! on May 23 and hosted VH1 's special '' Maxim Hot 100 '' on May 27 . In August 2008 , The Pussycat Dolls traveled to Asia to open the 2008 MTV Asia Awards in Kuala Lumpur , Malaysia , performing " Buttons " and " When I Grow Up " on August 2 and appeared on the second day of the Singfest music festival in Singapore on August 4 . On August 29 , they performed " When I Grow Up " on '' Today '' and several days later performed at the annual charity fundraiser event Fashion Rocks . The group then performed five songs at a Walmart Soundcheck showcase : " I Hate This Part " , " Takin ' Over the World " and " When I Grow Up " from '' Doll Domination '' , and " Buttons " and " Do n't Cha " from '' PCD '' . Towards the end of September 2008 they traveled to the United Kingdom and performed " When I Grow Up " at the Vodafone Awards , '' GMTV '' , '' This Morning '' and the '' Sound and One Night Only '' and appeared on the covers of '' The Sun 's '' Something For The Weekend '' , '' The Big Issue '' and '' QX ''
2008 MTV Asia Awards
MTV Asia Awards 2008
Doll Domination