Trawick proposed with a classic Neal Lane diamond engagement ring, which Lane himself custom-designed with the groom, a company spokesperson confirmed to HuffPost Weddings.
The pair began dating in 2009. This will be Spears's third marriage; her first -- to childhood friend Jason Alexander -- was annulled after 55 hours in 2004. In 2006, the pop star split from her children's father, Kevin Federline.
Click through the slideshow below to learn more about Spears and Trawick's love story.