In the middle of a hot summer of love, superstar couple Gwen Stefani and Blake Shelton are planning to drop a MAJOR relationship bombshell on fans, RadarOnline.com has learned.
But no, they are NOT getting married — just yet!
According to a source close to the 46-year-old "Make Me Love You" singer, "Gwen and Blake have told their friends that they are doing an album together!"
"It is going to be a Christmas album," the insider revealed, adding, "They said it will be a little bit pop with a lot of country!"
As Radar was the first to report, this is not the first time that Stefani and Shelton, 40, LITERALLY made sweet music together!
Towards the end of last season of The Voice, they performed their latest collaboration, the hit song "Go Ahead and Break My Heart."
Do you think that Gwen Stefani should marry Blake Shelton? Sound off in the comments below.