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In page Linda Perry:

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In 2005, Perry re-released her solo album In Flight. The same year, she began working with Christina Aguilera on her third studio album, Back to Basics (2006), co-writing with Aguilera every song on the album's second disc. In late 2006 and early 2007, Perry contributed production and songwriting to Vanessa Carlton's third studio album, Heroes and Thieves.[citation needed]