Cymphonique Miller is an American teen actress and singer. She is the daughter of Percy Robert Miller (Master P) and the sister of Romeo Miller. For Phineas and Ferb, she's the first voice of Holly.
In December 2009, she signed a deal with Nickelodeon to star in a TV series, How to Rock, which has premired and is currently in development.
On April 9, 2011, she guest-starred on Big Time Rush as part of a rival band.