Pop star-turned-TV personality Christina Milian is set to become a princess after accepting longtime boyfriend Jas Prince's marriage proposal, according to reports.

Sources tell Life & Style magazine the couple became engaged earlier this year (13).

One friend says, "She is over-the-moon happy."

Milian and Prince have been dating since September, 2010.

Milian, real name Christina Flores, previously dated Mariah Carey's husband Nick Cannon and was briefly married to hitmaker The-Dream in 2009. The former couple has a three-year-old daughter.

The engagement news comes as reports of Milian's plans to join the cast of the new season of Dancing With the Stars swirl.