Blake Shelton fans have gotten used to Gwen Stefani turning up on stage when Shelton makes his ... playing country music have ...

Gwen Stefani performs at the Phoenix Open Concert ... country music have been this man's guiding principles for more than 20 years, which may be why he does them both so well.

Blake Shelton fans have gotten used to Gwen Stefani turning up on stage when Shelton ... been this man's guiding principles for more than 20 years, which may be why he does them both so well.

Ciara leaked her song "Promise" in 2006 after a record executive called it "the worst R&B song." And then it hit No. 1.