Thanks to Kevin for the heads up,according to Tony’s Wikipedia page,he sang backup on Pink’s song ”Crystal Ball” from her 2008 album Funhouse.We already knew he collaborated on the songs ”Funhouse” and ”Sober” from the same album(even appearing in the music video for ”Funhouse”);listen to the song below:
EDIT-You can also listen to and download the song HERE.
**UPDATE** Thanks to IngenTivil on the No Doubt forum for the info,Billy Mann is listed in the CD booklet for the Funhouse album as being the backup vocalist on ”Crystal Ball”,not Tony;we apologize for any confusion.