Trawick announced Friday on "Access Hollywood" that he and Spears are engaged. The two have been dating since 2009.
Spears hinted at the big news with a tweet Friday morning that read, "OMG. Last night Jason surprised me with the one gift I've been waiting for. Can't wait to show you! SO SO SO excited!!!!"
Spears was previously married to Kevin Federline, with whom she has two sons: 6-year-old Sean Preston and 5-year-old Jayden James. The couple divorced in 2006. Spears also briefly wed childhood friend Jason Alexander in 2004, but the marriage was annulled after 55 hours.