The Essential Martina McBride, a 40-song collection of some of the country star's biggest hits and most beloved duets, will be released via RCA Nashville/Legacy Recordings on Oct. 22. The double disc set will reportedly span the songbird's career from 1992 - 2010, which were her years at RCA before signing a new deal with Republic Nashville.

As happy as this news is for her fans, Martina is a bit annoyed that her former label didn't consult her about the compilation. In fact, she found out about it at the same time fans did. "Wow! Kinda sucks that I had 2 find out on twitter that RCA is releasing a cd of 40 of my songs. #hopeIatleastgetafreecopy," she tweeted Monday (Sept. 17), adding, "Having said that I'm not mad about it. Just would have been cool to get a phone call. #iwonderwhatthecoverlookslike?"

She'll have to keep wondering for a bit. The cover image is still absent on Amazon's page for The Essential Martina McBride, as is the track listing. CMT reports that the set will include several duets, including "Still Holding On" with Clint Black, "Trip Around the Sun" with Jimmy Buffett, "Chances Are" with Bob Seger and "Louisiana Woman, Mississippi Man" with Alan Jackson.

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