Singer Jason Mraz is set to wed singer/songwriter Tristan Prettyman after proposing on Thursday night.
 
The I'm Yours star, 33, popped the question to his 28 year old love and broke the news to fans in a simple post via Twitter.com.
 
He wrote, "SHE SAID YES."
 
Prettyman also took to the web to express her delight at the surprise proposal, writing, "For Once. I Am Speechless.....i did good! holy c**p! man of my dreams!!! for the rest of my life!!!"
 
Last year, Mraz gushed about finding love with Prettyman, telling Eonline.com, "I'm not married yet, but I think I may have found the one."
 
The couple recently stunned attendees at a holiday benefit concert in San Diego, California by taking to the stage for an unscheduled performance, singing a duet of All I Want For Christmas.