Waddy Wachtel album were titled Ronin. Released on the Mercury label, the record never charted. In 1984 he played on Steve Perry's (Journey) solo album Street Talk. He has appeared on hundreds of albums with many different artists and bands. Production credits include albums by Stevie Nicks, Keith Richards, Jackson Browne, Bryan Ferry, The Church, Sand Rubies, George Thorogood and the Destroyers and Warren Zevon. Wachtel co-wrote several songs with Zevon including "Werewolves of London". He also co-wrote the Warren Zevon song "Things to Do in Denver When You're Dead" from the album "Mr. Bad Example". He performed and co-produced the first
Diane Warren Dion, Mariah Carey, Toni Braxton, Exposé, Leigh Nash of Sixpence None the Richer, LeAnn Rimes, Kierra Sheard, Lady Gaga, Claire Richards, Westlife and so on, producing some of the songs as well. Her songs have been covered by artists including Joe Cocker, Weezer, Edwin McCain, Milli Vanilli, Mark Chesnutt, and so on. Warren wrote three songs for Carrie Underwood's debut album, "Some Hearts" (2005) that were "Lessons Learned", "Whenever You Remember" and the title track. In 2009, Warren co-wrote the United Kingdom's entry in the Eurovision Song Contest with Andrew Lloyd Webber the song "It's My Time". It was sung