León was hired in 2002 to write songs alongside Rick Krizman for the soap opera General Hospital. In 2003, Adrianne León performed two songs for the documentary Hollywood's Magical Island: Catalina, "Everlasting Dream" and "She Heals You". She formed Caught Crimson with the help of Murray Yates, lead vocalist of the Canadian rock band Forty Foot Echo. León later recruited former Artension bassist Kevin Chown, former Alien Ant Farm guitarist Terry Corso and former Forty Foot Echo drummer Rob Kurzretier. León provided vocals for a Glamma Jammas commercial song titled "Don't Get Me Started", it was written and produced by Kendall Marsh. She also sang "Favor Me" and "Falling In" both written and produced by Jody Whitesides. On October 4, 2003, Adrianne León performed at the California Avocado Festival. As well as performed at Aloha Festival on August 23, 2003, where she opened for the band "Dishwalla" and another Festival on May 17, 2003. All festivals were held in Carpinteria, California.