IPAD app for lyrics on stage

[Louie Angulo <louie.angulo@googlemail.com>]

Hi gang,
is there an effective app for the iPad to read lyrics on stage and
change them with a foot controller as you need them?
I've been checking out some of them,i still don't have the iPad but
will eventually get one and i can see the potential of something like
this as i get hired to sing with not enough time to learn lyrics
repertories by different band projects.
thanx
cheers
Luis
-- 
www.luis-angulo.com