Bryan Adams song With Pamela Anderson

Bryan Adams latest single will feature an unlikely duet partner: Pamela Anderson.She appears on his song "When you're Gone."

The single will emerge on a two-CD collection called "Anthology", which will mark 19 of his hits, plus another new song called "So Far So Good," which happens to be the title of Adams' 1993 greatest hits album.

"Anthology" comes out Oct. 18. In the meantime, Adams is extending his co-headlining tour with Def Leppard.

Adams and Anderson, both Canadian-born, first worked jointly on Adams' 1999 photography book Made In Canada, for which Anderson wore nothing but a flag. The book, also starring other influential Canadian women such as Linda Evangelista, k.d. lang and Shania Twain, benefited the Canadian Breast Cancer Foundation. The original side of "When You're Gone" appeared on Adams' 1998 album On A Day Like Today and featured former Spice Girl Melanie C.