Gwen Stefani's 'Glycerine' Duet with Husband Gavin Rossdale Released on iTunes

Gavin Rossdalegave fans a surprise on Dec. 8 at the KROQ Almost Acoustic Christmas Concert in Los Angeles:he stunned the audience by culminating a performance of the classic Bush song, Glycerine, with a duet with wife Gwen Stefani.

For those fans that didnt catch the show live, Rossdale is now making the song available for purchase on iTunes.

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The KROQ performance began with Rossdale singing the songs first verse. Stefani later surprised fans by walking onstage to join in the second verse, much to the excitement of the crowd.Rossdale told Rolling Stone that Glycerine sounde! d so much better with the help of Stefani. He said to the magazine, it would be so powerful, the two of us on stage, thats what we went for.

The moment commemorated the 17-year anniversary of when Rossdaleand Stefani first met.

Rossdales latest album, The Sea of Memories, released Sep. 2011, is being promoted as part of the bands tour.

Twitter: @THRMusic