2007 saw Perry working with Vanessa Carlton on her third studio album, Heroes and Thieves. She also co-wrote and did session work on many of the songs on Sierra Swan's solo album, Ladyland. She continued work with Courtney Love, Kelis, Cheap Trick, Ziggy Marley, Ben Jelen, Skin, Enrique Iglesias, The Format on the song "Dead End," and "Darker Side of The Moon" on Bay Area artist Goapele's Change It All album.