`Katy Perry: Part of Me` Performance for Pepsi`s Fleet Week

In this May 23, 2012 photo released by Starpix, singer Katy Perry wears a patriotic dress as she performs at a Pepsi-sponsored event at Brooklyn Pier 9A, kicking off Fleet Week in New York. (AP Photo/Starpix, Amanda Schwab)

`Katy Perry: Part of Me` Performance for Pepsi`s Fleet Week

AP Photo/Starpix, Amanda Schwab

In this May 23, 2012 photo released by Starpix, singer Katy Perry wears a patriotic dress as she performs at a Pepsi-sponsored event at Brooklyn Pier 9A, kicking off Fleet Week in New York. (AP Photo/Starpix, Amanda Schwab)

`Katy Perry: Part of Me` Performance for Pepsi`s Fleet Week

In this May 23, 2012 photo released by Starpix, singer Katy Perry wears a patriotic dress as she performs at a Pepsi-sponsored event at Brooklyn Pier 9A, kicking off Fleet Week in New York. (AP Photo/Starpix, Amanda Schwab)

`Katy Perry: Part of Me` Performance for Pepsi`s Fleet Week

In this May 23, 2012 photo released by Starpix, singer Katy Perry wears a patriotic dress as she performs at a Pepsi-sponsored event at Brooklyn Pier 9A, kicking off Fleet Week in New York. (AP Photo/Starpix, Amanda Schwab)

`Katy Perry: Part of Me` Performance for Pepsi`s Fleet Week

In this May 23, 2012 photo released by Starpix, singer Katy Perry stands with an unidentified U.S. Navy personnel as she performs at a Pepsi-sponsored event at Brooklyn Pier 9A, kicking off Fleet Week in New York. (AP Photo/Starpix, Amanda Schwab)